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GRI Publications for John D. Madsen
Book or Book Chapter
Madsen, J. D., Richardson, R. J., & Wersal, R. M. (2012). Managing Aquatic Vegetation. In J. W. Neal and D. W. Willis (Eds.), Small Impoundment Management in North America.. Bethesda, MD: American Fisheries Society. 275-305.

Madsen, J. D. (2009). Chapter 1: Impacts of Invasive Aquatic Plants on Aquatic Biology, Pp. 1-8. In: Biology and control of aquatic plants: A best management practices handbook. (Gettys, L.A., W.T. Haller, and M. Bellaud, eds.).. Marietta, GA: Aquatic Ecosystem Restoration Foundation.. 210. [Document]

Madsen, J. D. (2009). Chapter 13.2: Eurasian Watermilfoil, Pp. 95-98. In: Biology and control of aquatic plants: A best management practices handbook. (Gettys, L.A., W.T. Haller, and M. Bellaud, eds.).. Marietta, GA: Aquatic Ecosystem Restoration Foundation.. 210. [Document]

Madsen, J. D. (2009). Appendix D: Developing a Lake Management Plan, Pp. 167-172. In: Biology and control of aquatic plants: A best management practices handbook. (Gettys, L.A., W.T. Haller, and M. Bellaud, eds.).. Marietta, GA: Aquatic Ecosystem Restoration Foundation.. 210. [Document]

Peer-Reviewed Journals
Wersal, R. M., & Madsen, J. D. (2013). Influences of Light Intensity Variations on Growth Characteristics of Myriophyllum Aquaticum. Journal of Freshwater Ecology. 28(2), 147-164. [Document]

Wersal, R. M., Madsen, J. D., & Cheshier, J. (2013). Seasonal Biomass and Starch Allocation of Common Reed (Phragmites Australis) (Haplotype I) in Southern Alabama, USA. Invasive Plant Science and Management. 6, 140-146. [Document]

Wersal, R. M., Madsen, J. D., & Gerard, P. D. (2013). Survival of Parrotfeather Following Simulated Drawdown Events. Journal of Aquatic Plant Management. 51, 22-26. [Document]

Wersal, R. M., & Madsen, J. D. (2012). Combinations of Diquat and Carfentrazoneethyl for Control of Floating Aquatic Plants. Journal of Aquatic Plant Management. 50, 46-48. [Document]

Cheshier, J., Madsen, J. D., Wersal, R. M., Gerard, P. D., & Welch, M. E. (2012). Evaluating the Potential for Differential Susceptibility of Common Reed (Phragmites Australis) Haplotypes I and M to Aquatic Herbicides. Invasive Plant Science and Management. 5, 101-105. DOI:10.1614/IPSM-D-11-00051.1. [Document]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2011). Development of a GIS Model to Enhance Macrophyte Re-establishment Projects. Applied Geography. 32, 629-635.

Wersal, R. M., Cheshier, J., Madsen, J. D., & Gerard, P. D. (2011). Phenology, Starch Allocation, and Environmental Effects on Myriophyllum Aquaticum. Aquatic Botany. 95, 194-199. [Document]

Robles, W., Madsen, J. D., & Wersal, R. M. (2011). Herbicide Efficacy Assessment on Waterhyacinth and Aquatic Plant Community Monitoring in Lake Columbus, Mississippi. Journal of Aquatic Plant Management. 49(89), 93. [Document]

Wersal, R. M., & Madsen, J. D. (2011). Comparative Effects of Water Level Variations on Growth Characteristics of Myriophyllum Aquaticum. Weed Research. 51(4), 386-393. [Document]

Wersal, R. M., & Madsen, J. D. (2011). Influences of Water Column Nutrient Loading on Growth Characteristics of the Invasive Aquatic Macrophyte Myriophyllum Aquaticum (Vell.) Verdc. Hydrobiologia. 665(1), 93-105. [Document]

Cheshier, J., Wersal, R. M., & Madsen, J. D. (2011). The Susceptibility of Duckweed (Lemna Minor L.) to Fluridone and Penoxsulam. Journal of Aquatic Plant Management. 49, 50-52. [Document]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2011). Macrophyte Re-Establishment for Fish Habitat in Little Bear Creek Reservoir, Alabama, USA. Journal of Freshwater Ecology. 26(1), 105-114.

Robles, W., Madsen, J. D., & Wersal, R. M. (2010). Potential for Remote Sensing to Detect and Predict Herbicide Injury on Waterhyacinth (Eichhornia Crassipes). Invasive Plant Science and Management. 3, 440-450. [Document]

Wersal, R. M., & Madsen, J. D. (2010). Comparison of Subsurface and Foliar Herbicide Applications for Control of Parrotfeather (Myriopyllum Aquaticum). Invasive Plant Science and Management. 3, 262-267. [Document]

Wersal, R. M., Madsen, J. D., Woolf, T. E., & Eckberg, N. (2010). Assessment of Herbicide Efficacy on Eurasian Watermilfoil and Impacts to the Native Submersed Plant Community in Hayden Lake, Idaho, USA. Journal of Aquatic Plant Management. 48, 5-11. [Document]

Wersal, R. M., & Madsen, J. D. (2010). Combinations of Penoxsulam and Diquat as Foliar Applications for Control of Waterhyacinth and Common Salvinia: Evidence of Herbicide Antagonism. Journal of Aquatic Plant Management. 48, 21-25. [Document]

Wersal, R. M., Madsen, J. D., Massey, J. H., Robles, W., & Cheshier, J. (2010). Comparison of Daytime and Night-Time Applications of Diquat and Carfentrazone-Ethyl for Control of Parrotfeather and Eurasian Watermilfoil. Journal of Aquatic Plant Management. 48, 56-58. [Document]

Simpson, A., Jarnevich, C., Madsen, J. D., Westbrooks, R., Fournier, C., Mehrhoff, L., Browne, M., Graham, J., & Sellers, E. (2009). Invasive Species Information Networks: Collaboration at Multiple Levels for Prevention, Early Detection, and Rapid Response to Invasive Alien Species. Biodiversity. 10(2), 5-13. [Abstract] [Document]

Wersal, R. M., & Madsen, J. D. (2009). Combinations of Diquat and a Methylated Seed Oil Surfactant for Control of Common Duckweed and Watermeal. Journal of Aquatic Plant Management. 47(1), 59-62. [Document]

Theel, H. J., Dibble, E. D., & Madsen, J. D. (2008). Differential Influence of a Monotypic and Diverse Native Aquatic Plant Bed on a Macroinvertebrate Assemblage; an Experimental Implication of Exotic Plant Induced Habitat. Hydrobioologia. 600, 77-87.

Madsen, J. D., Wersal, R. M., Getsinger, K., & Nelson, L. S. (2008). Sensitivity of Wild Rice (Zizania Palustris L.) to the Aquatic Herbicide Triclopyr. Journal of Aquatic Plant Management. 46(2), 150-154. [Document]

Madsen, J. D., & Wersal, R. M. (2008). Growth Regulation of Salvinia Molesta by PH and Available Water Column Nutrients. Journal of Freshwater Ecology. 23, 305-313. [Document]

Madsen, J. D., Stewart, R. M., Getsinger, K., Johnson, R. L., & Wersal, R. M. (2008). Aquatic Plant Communities in Waneta Lake and Lamoka Lake, New York. Northeastern Naturalist. 15, 97-110. [Document]

Wersal, R. M., & Madsen, J. D. (2007). Comparison of Imazapyr and Imazamox for Control of Parrotfeather (Myriophyllum Aquaticum (Vellozo) Verdecourt). Journal of Aquatic Plant Management. 45, 132-136. [Document]

Gray, C. J., Madsen, J. D., Wersal, R. M., & Getsinger, K. (2007). Eurasian Watermilfoil and Parrotfeather Control Using Carfentrazone-ethyl. Journal of Aquatic Plant Management. 45, 43-46. [Document]

Madsen, J. D., Wersal, R. M., & Woolf, T. E. (2007). A New Core Sampler for Estimating Biomass of Submersed Aquatic Macrophytes. Journal of Aquatic Plant Management. 45, 31-34. [Document]

Madsen, J. D., Wersal, R. M., Tyler, M., & Gerard, P. D. (2006). The Distirbution and Abundance of Aquatic Macrophytes in Swan Lake and Middle Lake, Minnesota. Journal of Freshwater Ecology. 21, 421-429. [Document]

Wersal, R. M., Madsen, J. D., McMillan, B. R., & Gerard, P. D. (2006). Environmental Factors Affecting the Biomass and Distribution of Stuckenia Pectinata in the Heron Lake System, Minnesota, USA. Wetlands. 26, 313-321. [Document]

Robles, W., & Madsen, J. D. (2006). Current Status of Giant Salvinia (Salvinia Molesta D.S. Mitchell) in Mississippi. Mid-South Aquatic Plant Management Society Newsletter. 24(2), 3. [Document]

Madsen, J. D. (2005). Eurasian Watermilfoil Invasions and Management Across the United States. Currents: The Journal of Marine Education. 21(2), 21-26. [Document]

Wersal, R. M., McMillan, B. R., & Madsen, J. D. (2005). Food Habits of Dabbling Ducks during the Fall Migration in a Prairie Pothole System, Heron Lake, Minnesota. Canadian Field-Naturalist. 119, 546-550. [Document]

Poovey, A. G., Getsinger, K., Skogerboe, J. G., Koschnik, T. J., Madsen, J. D., & Stewart, R. M. (2004). Small-plot, Low-dose Treatments of Triclopyr for Selective Control of Eurasian Watermilfoil. Lake and Reservoir Management. 20(4), 322-332.

Case, M. L., & Madsen, J. D. (2004). Point Intercept Surveys of Aquatic Macrophytes, Tubers and Sediment in Heron Lake, Minnesota: Identifying Factors Limiting the Growth of Stukenia Pectinata (L.) Borner (Sago Pondweed). Journal of Freshwater Ecology. 19, 17-23.

Woolf, T. E., & Madsen, J. D. (2003). Seasonal Biomass and Carbohydrate Allocation Patterns in Southern Minnesota Curlyleaf Pondweed Populations. Journal of Aquatic Plant Management. 41, 113-118.

Peer-Reviewed Conference Abstracts
Sartain, B. T., & Madsen, J. D. (2013). AN INITIAL TEST INTO THE SELECTIVITY OF EIGHT HERBICIDES FOR MANAGEMENT OF HYDRILLA IN THE PRESENCE OF EIGHT CO-OCCURING NATIVE PLANT SPECIES. Midwest Aquatic Plant Management Society 33rd Annual Conference. Cleveland, OH: Geosystems Research Institute. [Document]

Sartain, B. T., Wersal, R. M., & Madsen, J. D. (2012). Aquatic Plant Community Assessment within the Littoral Zone of the Ross Barnett Reservoir, MS in 2012: An Eight Year Evaluation. MidSouth Aquatic Plant Management Society 31st Annual Conference. Mobile, AL. [Document]

Watson, A. F., Madsen, J. D., & Wersal, R. M. (2012). Herbicide Efficacy on Cuban Bulrush (Oxycaryum Cubense (Poeppe &Amp; Kunth) Palla). MidSouth Aquatic Plant Management Society 31st Annual Conference. Mobile, AL. [Abstract]

Watson, A. F., & Madsen, J. D. (2012). An Evaluation of 10 Herbicides on Cuban Bulrush (Oxycaryum Cubense (Poeppe &Amp; Kunth) Palla) Control. Aquatic Plant Management Society 53rd Annual Meeting. Salt Lake City, UT. [Abstract]

Watson, A. F., & Madsen, J. D. (2011). Predicting Plant Dispersal Using GPS Tracking Drones. MidSouth Aquatic Plant Management Society 30th Annual Conference. Guntersville, AL.

Watson, A. F., Madsen, J. D., Wersal, R. M., & McLaurin, C. S. (2011). Information on Cuban Bulrush (Oxycaryum Cubense (Poeppe &Amp; Kunth) Palla). Aquatic Plant Management Society 51st Annual Meeting. Baltimore, MD.

Peer-Reviewed Conference Papers
Madsen, J. D., & Ervin, G. N. (2007). Invasive Plant Atlas for the Mid-South (IPAMS): The Collaboration of Volunteers and Citizen Scientists in Locating Key Invasive Plants for Modeling Land-use Interactions. Agronomy Society of America-Crop Science Society of America-Soil Science Society of America Annual Meeting (November 6, 2007). New Orleans, LA.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2007). Littoral Zone Plant Communities in the Ross Barnett Reservor, MS. Proceedings of the 37th Annual Mississippi Water Resources Conference. 102-108. [Document]

Madsen, J. D., & Ervin, G. N. (2007). Integrating Effects of Land Use Change on the Invasive Plant Species Distribution into an Invasive Plant Atlas for the Mid-South (IPAMS). 2007 Proceedings, Southern Weed Science Society. 60, 197. [Document]

Mathur, A., Bruce, L.M., Johnson, D., Robles, W., & Madsen, J. D. (2006). Exploiting Hyperspectral Hypertemporal Imagery with Feature Clustering for Invasive Species Detection. Proc. IEEE Geoscience and Remote Sensing Symposium.

Mathur, A., Bruce, L.M., Johnson, D. W., Robles, W., & Madsen, J. D. (2006). Automated Stepwise Selection of Hyperspectral Hypertemporal Features for Target Detection. Proc. IEEE Geoscience and Remote Sensing Symposium.

Mathur, A., Bruce, L.M., Robles, W., & Madsen, J. D. (2006). Identification of Pertinent Regions in Spectro-temporal Maps for Vegetative Target Detection. ASPRS 2006 Annual Conference. Reno, NV. [Document]

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2006). Mapping Invasive and Native Plants in the Ross Barnett Reservoir. Proceedings of the 36th Annual Mississippi Water Resources Conference. 55-58.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2006). Mapping Invasive Aquatic Macrophytes in the Ross Barnett Reservoir. Proceedings Southern Weed Science Society. 59, 195. [Document]

Cheshier, J., Wersal, R. M., & Madsen, J. D. (2006). Efficacy of Three Aquatic Herbicides for the Control of Swamp Smartweed. Proceedings Southern Weed Science Society. MS. 59, 201. [Document]

Madsen, J. D., & Wersal, R. M. (2006). Regulation of Giant Salvinia (Salvinia Molesta Mitchell) Growth by PH and Available Nutrients. Proceedings Southern Weed Science Society. 59, 202. [Document]

Robles, W., Madsen, J. D., Mathur, A., & Bruce, L.M. (2006). Ground-truthed Hyperspectral Data for Remote Sensing of Waterhyacinth. Proceedings Southern Weed Science Society. 59, 194. [Document]

Madsen, J. D., & Getsinger, K. (2005). Selective Control of Invasive Submersed Aquatic Plants. Proceedings, Southeast Exotic Pest Plant Council 7th Annual Conference. Birmingham, AL. [Document]

Madsen, J. D., Byrd, J., Shaw, D. R., & Westbrooks, R. (2005). Developing a State Invasive Species Alliance for Mississippi. 2005 Proceedings, Southern Weed Science Society. 58, 253. [Document]

Gray, C. J., Madsen, J. D., Wersal, R. M., & Getsinger, K. (2005). Carfentrazone in Combination with 2,4-D for the Control of Eurasian Watermilfoil (Myriophyllum Spicatum) and Parrotfeather (Myriophyllum Aquaticum). 2005 Proceedings, Southern Weed Science Society. 58, 247. [Document]

Maddox, V. L., Byrd, J., & Madsen, J. D. (2005). Significant Invasive Species of the Mid-South States. 2005 Proceedings, Southern Weed Science Society. 58, 254. [Document]

Madsen, J. D., Stewart, R. M., Way, A., & Owens, C. S. (2004). Distribution of Hydrilla (Hydrilla Verticillata) and Native Submersed Macrophytes in Lake Gaston, North Carolina and Virginia. 2004 Proceedings, Southern Weed Science Society. 57, 313-316.

Peer-Reviewed Conference Posters
Maddox, V. L., Madsen, J. D., & Chapin, R. (2011). Formation of the Mississippi Cooperative Weed Management Area: A New Vision for an Old Problem. Southern Weed Science Society. 64th Annual Meeting of the Southern Weed Science Society, Caribe Hilton, San Juan, Puerto Rico.

Cheshier, J., Madsen, J. D., & Kaminski, R. M. (2009). Selective Herbicides for Managing Moist-Soil Wetlands in the Mississippi Alluvial Valley. 5th North American Duck Symposium. Toronto, Ontario, Canada. [Document]

Non-Refereed Conference Abstracts
Madsen, J. D. (2014). Flowering Rush in Detroit Lakes: From Research to an Operational Management Program. Midwest Aquatic Plant Management Society Annual Meeting. Lombard, IL. [Abstract]

Madsen, J. D., Sartain, B. T., & Turnage, G. (2014). Herbicide Trials for Management of Flowering Rush in Minnesota. Weed Science Society of America 54th Annual Meeting. Vancouver, BC, Canada. [Abstract]

Wersal, R. M., Madsen, J. D., & Turnage, G. (2014). Evaluating the Sensitivity of Hydrilla and American Lotus to Different Copper Formulations Applied Alone and in Combination with Diquat. 2014 Northeast Aquatic Plant Management Society annual conference. Westbrook, CT.

Fleming, J. P., Dibble, E. D., Madsen, J. D., & Wersal, R. M. (2013). Investigation of Darwin's Naturalization Hypothesis in Invaded Macrophyte Communities. Aquatic Plant Management Society 53rd Annual Meeting. San Antonio, TX. [Abstract]

Madsen, J. D., Maddox, V. L., Ervin, G. N., & Wersal, R. M. (2012). EDRR and the Invasive Plant Atlas of the MidSouth Project. Society of Range Management Annual Meeting. Spokane, WA. [Abstract]

Madsen, J. D., & Wersal, R. M. (2012). Evaluating the Effectiveness and Potential Interactions of Combining Triclopyr and 2,4-D for Eurasian Watermilfoil Control. Northeast Aquatic Plant Management Society Annual Meeting. New Castle, NH, January 17-19 2012. [Abstract]

Madsen, J. D. (2011). Something Green in Your Pond. 5th National Aquaculture Extension Conference. Memphis, TN. [Abstract]

Madsen, J. D., Wersal, R. M., & McLaurin, C. S. (2011). Sensitivity of Native Aquatic Plant Species to Imazamox (Clearcast) and Penoxsulam (Galleon). Western Aquatic Plant Management Society Annual Meeting. Westminster, CO. [Abstract]

Madsen, J. D., Cheshier, J., Phuntumart, V., Thum, R., & Welch, M. (2011). Morphological and Genetic Taxonomic Analysis of Native and Nonnative Watermilfoil in Reservoirs of the Lower Clark Fork River System. Western Aquatic Plant Management Society. Westminster, CO. [Abstract]

Getsinger, K. D., Madsen, J. D., Wersal, R. M., Skogerboe, J. G., Nawrocki, J., & Richardson, R. J. (2011). Aquatic Herbicide Trials for Selective Control of Eurasian Watermilfoil and Curlyleaf Pondweed in Noxon Rapids Reservoir: 2009-2010. Western Aquatic Plant Management Society Annual Meeting. Denver, CO. [Abstract]

Madsen, J. D., Wersal, R. M., & McLaurin, C. S. (2011). Sensitivity of Native Aquatic Plant Species to Imazamox and Penoxsulam. Midwest Aquatic Plant Management Society Annual Meeting. Grand Rapids, MI. [Abstract]

Cheshier, J., & Madsen, J. D. (2011). The Life History of Common Reed: Phragmites Australis (Cav.) Trin. Ex Steud. Weed Science Society of America. Portland, OR. [Abstract]

Madsen, J. D. (2010). Site-Specific Management of Aquatic Weeds. Weed Science Society of America and the Society of Range Management Joint Meeting. Denver, CO.. [Abstract]

Madsen, J. D., & Ervin, G. N. (2010). An Update on the Invasive Species Atlas of the MidSouth. Weed Science Society of America and the Society of Range Management Joint Meeting. Denver, CO. [Abstract]

Prince Czarnecki, J. M., Madsen, J. D., Shaw, D. R., & Brooks, C. P. (2010). Predicting Habitat for Eurasian Watermilfoil with Mahalanobis Distance Methods. Weed Science Society of America Abstracts. Denver, CO. [Abstract]

Prince Czarnecki, J. M., Madsen, J. D., Shaw, D. R., & Brooks, C. P. (2010). Presence-Only Methods for Predication of Eurasian Watermilfoil Habitat. Proceedings of the Southern Weed Science Society. Little Rock, AR. [Abstract]

Madsen, J. D., & Ervin, G. N. (2010). An Update on the Invasive Plant Atlas of the MidSouth Project. Southern Weed Science Society Annual Meeting. Little Rock, AR. [Abstract]

Madsen, J. D., Wersal, R. M., & Woolf, T. E. (2009). Eurasian Watermilfoil Monitoring and Management Assessment in the Pend Oreille Lake and River System, Idaho. Western Aquatic Plant Management Society Annual Meeting,. Honolulu, HI: 30 March - 1 April 2009. [Abstract]

Madsen, J. D., & Wersal, R. M. (2009). Efficacy of Combinations of Endothall with 2,4-D and Triclopyr For Enhanced Control of Eurasian Watermilfoil with Low Contact Time. Western Aquatic Plant Management Society Annual Meeting. Honolulu, HI: 30 March - 1 April 2009. [Abstract]

Madsen, J. D., Wersal, R. M., & Getsinger, K. (2009). Efficacy of Combinations of Endothall with 2,4-D and Triclopyr for Enhanced Control of Eurasian Watermilfoil with Low Contact Time. Midwest Aquatic Plant Management Society 29th Annual Meeting, March 1-4, 2009. Chicago, IL. [Abstract]

Madsen, J. D., & Ervin, G. N. (2009). The Invasive Plant Atlas of the Mid-South. Weed Science Society of America 2009 Annual Meeting. Orlando, FL. [Abstract]

Madsen, J. D., Wersal, R. M., & Getsinger, K. (2009). Efficacy of Combinations of Endothall with 2,4-D and Triclopyr For Enhanced Control of Eurasian Watermilfoil with Low Contact Time. Northeast Aquatic Plant Management Society 10th Annual Meeting, January 19-21, 2009. Saratoga Springs, NY. [Abstract]

Madsen, J. D., Wersal, R. M., & Tagert, M. L. (2009). Littoral Zone Survey of the Ross Barnett Reservoir (MS) for Invasive Species Management. Souther Division of the American Fisheries Society Spring Meeting, 15-18 January 2009. New Orleans, LA. [Abstract]

Non-Refereed Conference Papers
Madsen, J. D. (2014). Ecology and Management of Flowering Rush in Minnesota. Northern Rockies Invasive Plant Coucil Conference. Spokane, WA: Northern Rockies Invasisve Plant Council. [Abstract]

Madsen, J. D., Turnage, G., & Wersal, R. M. (2013). Increasing the Selectivity of Contact Herbicides on Hydrilla: Sensitivity Tests with American Lotus. Aquatic Plant Management Society 53rd Annual Meeting. San Antonio, TX. [Abstract]

Madsen, J. D. (2013). Monoecious Hydrilla - The Aquatic Weed for the New Century? Aquatic Plant Management Society 53rd Annual Meeting. San Antonio, TX. [Abstract]

Turnage, G., & Madsen, J. D. (2013). Phenology of Curlyleaf Pondweed (Potamogeton Crispus) in the Southeastern U. S. Aquatic Plant Management Society 53rd Annual Meeting. San Antonio, TX. [Abstract] [Document]

Turnage, G., & Madsen, J. D. (2012). Major Aquatic Weed Problems in the MidSouth: Identification and Specific Recommendations for Management. 2012 Mississippi Vegetative Management Association Annual Conference. Jackson, MS.

Madsen, J. D. (2012). Aquatic Plant Ecology Meets the Science of Plant Management. 32nd International Symposium of the North American Lake Management Society. Madison, WI. [Abstract]

Madsen, J. D., Marko, M. D., Skogerboe, J. G., & Wersal, R. M. (2012). Ecology and Managment of Flowering Rush in Detroit Lakes, Minnesota. Upper Midwest Invasive Species Conference. La Crosse, WI.

Marko, M. D., Madsen, J. D., Wersal, R. M., Hermanson, K., Lindor, N., Tolkinen, J., Smith, R., & Olson, C. (2012). Phenology and Ecology of Flowering Rush in Detroit Lakes, Minnesota. Upper Midwest Invasive Species Conference. La Crosse, WI.

Madsen, J. D., & Netherland, M. D. (2012). Small Scale Research and Large Scale Monitoring. Upper Midwest Invasive Species Conference. La Crosse, WI.

Madsen, J. D., & Wersal, R. M. (2012). Recommendations for Aquatic Plant Monitoring and Assessment for NPDES Compliance. MidSouth Aquatic Plant Management Society Annual Meeting. Mobile, AL.

Turnage, G., Watson, A. F., Sartain, B. T., & Madsen, J. D. (2012). Surveys for Hydrilla and Giant Salvinia in Mississippi. 2012 MidSouth Aquatic Plant Management Society Annual Conference. Mobile, AL.

Moorhouse, T., McNabb, T., Rice, P., Dupuis, V., Mitchell, A., Parsons, J., Woolf, T., & Madsen, J. D. (2012). An Update on Flowering Rush Control Demonstration Projects for Infestations Spanning Watersheds between the Pacific Northwest and Great Lakes States. Aquatic Plant Management Society Annual Meeting. Salt Lake City, UT: July 23-26 2012.

Madsen, J. D. (2012). Diagnosis of a Nuisance Aquatic Plant Problem on Lake Havasu, Arizona. Aquatic Plant Management Society Annual Meeting. Salt Lake City, UT: July 23-26 2012.

Wersal, R. M., Madsen, J. D., Fleming, J. P., & Duncan, C. (2012). Assessment of the Distribution of Aquatic Invasive Plants in the Pacific Northwest: Five Years of Surveying. Aquatic Plant Management Society Annual Meeting. Salt Lake City, UT: July 23-26 2012.

Madsen, J. D. (2012). Guidance to Aquatic Plant Managers on Methods to Monitor and Assess Nuisance Plant Control. CropLife America and RISE 2012 Spring Conference: Precision, Policy, Progress. Arlington, VA: CropLife America, April 5-6 2012.

Madsen, J. D., & Wersal, R. M. (2012). Evaluating the Effectiveness and Potential Interactions of Combining Triclopyr and 2,4-D for Eurasian Watermilfoil Control. Midwest Aquatic Plant Management Society 32nd Annual Conference. Milwaukee, WI.

Madsen, J. D. (2012). A Review of Early Season Curlyleaf Pondweed Control Strategies. Midwest Aquatic Plant Management Society 32nd Annual Conference. Milwaukee, WI.

Madsen, J. D. (2011). Mississippi Invasive Species Programs: Finding Partners and Building Networks. 2011 Texas Invasive Plant and Pest Conference. Ladybird Johnson Wildflower Center, Austin, TX: Texas Invasive Plant and Pest Council.

Fleming, J. P., Spickard, M. R., Dibble, E. D., & Madsen, J. D. (2011). Aquatic Community Responses to Different Plant Control Strategies in the Mississippi Alluvial Valley. Midsouth Aquatic Plant Management Society 30th Annual Conference. Guntersville, AL.

Sherman, M., Dibble, E. D., & Madsen, J. D. (2011). Pond Management Approaches and Effects on Trophic-Dynamics. MidSouth Aquatic Plant Management Society Annual Meeting. Guntersville, AL.

Madsen, J. D. (2011). Aquatic Weed Control. National Roadside Vegetation Management Association. Little Rock, AR.

Fleming, J. P., Spickard, M. R., Dibble, E. D., & Madsen, J. D. (2011). Aquatic Community Responses to Different Plant Control Strategies in the Mississippi Alluvial Valley. 51st International Aquatic Plant Management Society Meeting. Baltimore, MD.

Heilman, M. A., Madsen, J. D., Wersal, R. M., & Netherland, M. D. (2011). Overview of Emerging Use Patterns for Management of Invasive Aquatic Vegetation with the ALS Herbicides Imazamox (Clearcast) and Penoxsulam (Galleon). Aquatic Plant Management Society 51st Annual Meeting. Baltimore, MD: July 24-28 2011.

Madsen, J. D. (2011). Flowering Rush (Butomus Umbellatus L.): An Invader on the Move. Aquatic Plant Management Society 51st Annual Meeting. Baltimore, MD: July 24-28 2011.

Madsen, J. D. (2011). To Manage or Not to Manage - That Is the Question. Aquatic Plant Management Society 51st Annual Meeting. Baltimore, MD: July 24-28 2011.

Marko, M., Olson, C., Dusek, S., Salo, E., & Madsen, J. D. (2011). Phenology of Flowering Rush and Hardstem Bulrush in Detroit Lakes. Aquatic Plant Management Society 51st Annual Meeting. Baltimore, MD: July 24-28 2011.

Sherman, M. S., Dibble, E. D., & Madsen, J. D. (2011). Cost of Different Pond Management Approaches and Effects on Trophic-Dynamics. Aquatic Plant Management Society 51st Annual Meeting. Baltimore, MD: July 24-28 2011.

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2011). Conceptual Model and Deductive GIS Methodology to Identify Suitable Macrophyte Habitat. Association of American Geographers 2011 Annual Meeting. Seattle, WA.

Madsen, J. D., Cheshier, J., Phuntumart, V., Thum, R., & Welch, M. (2011). Morphological and Genetic Taxonomic Analysis of Native and Nonnative Watermilfoil in Reservoirs of the Lower Clark Fork River System. Midwest Aquatic Plant Management Society Annual Meeting. Grand Rapids, MI. [Abstract]

Madsen, J. D. (2011). Economic and Ecological Impacts of Invasive Aquatic Plants. Southern Weed Science Society 64th Annual Meeting. San Juan, Puerto Rico.

Madsen, J. D. (2011). Advantages and Disadvantages of Aquatic Plant Management Techniques. Southern Weed Science Society 64th Annual Meeting. San Juan, Puerto Rico.

Madsen, J. D., Ervin, G. N., Wersal, R. M., & Fuller, P. (2011). Two Web-Based Databases for Invasive Aquatic Plant Locations and Information. Southern Weed Science Society 64th Annual Meeting. San Juan, Puerto Rico.

Madsen, J. D., Cheshier, J., Marko, M., & Guetter, T. (2010). Ecology and Management of Flowering Rush in the Detroit Lakes Chain. 2010 Minnesota-Wisconsin Invasive Species Conference, November 8-10, 2010. St. Paul, MN. [Abstract]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2010). Using Deductive GIS Modeling Tools to Locate Suitable Macrophyte Habitat for Re-Establishment Projects. Midsouth Aquatic Plant Management Society 29th Annual Meeting. Guntersville, AL.

Cox, M. C., Wersal, R. M., & Madsen, J. D. (2010). Evaluation of Alligatorweed (Alternanthera Philoxeroides [Mart.] Griseb.) Control with Nine Different Herbicides. Aquatic Plant Management Society 50th Annual Meeting. Bonita Springs, FL. [Abstract]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2010). Using Deductive GIS Modeling Tools to Locate Suitable Macrophyte Habitat for Re-Establishment Projects. Aquatic Plant Management Society 50th Annual Meeting. Bonita Springs, FL.

Madsen, J. D., Cheshier, J., Phuntumart, V. P., Thum, R. A., & Welch, M. E. (2010). Morphological and Genetic Taxonomic Analysis of Native and Nonnative Watermilfoil in Reservoirs of the Lower Clark Fork River System. Aquatic Plant Management Society 50th Annual Meeting. Bonita Springs, FL. [Abstract]

Madsen, J. D. (2010). What Challenges Lie Ahead for Hydrilla Management? Aquatic Plant Management Society 50th Annual Meeting. Bonita Springs, FL. [Abstract]

Cox, M. C., Madsen, J. D., & Wersal, R. M. (2010). Hydrilla and Giant Salvinia Survey in Mississippi for 2009. Aquatic Plant Management Society 50th Annual Meeting. Bonita Springs, FL. [Abstract]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2010). Establishing Aquatic Macrophytes as Self-Renewing Fish Habitat in Little Bear Creek Reservoir, Alabama. Southern Division of the American Fisheries Society 2010 Meeting. Asheville, NC.

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2010). Identifying Macrophyte Habitat with Deductive GIS Modeling: A Tool for Aquatic Resource Managers. Mississippi Chapter of the American Fisheries Society 36th Annual Meeting. Vicksburg, MS.

Madsen, J. D. (2009). Aquatic Weed Control in the MidSouth. Mississippi Vegetation Management Association. Lake Tiak O’Khata, MS, Novmeber 12-13, 2009.

Madsen, J. D. (2009). Identification and Management of Milfoils (Myriophyllum). Southeast Herbicide Applicators Conference. Panama City Beach, FL.

Maddox, V. L., Abbott, C. F., Madsen, J. D., & Westbrooks, R. (2009). New Developments with the Cactus Moth (Cactoblastis Cactorum Berg.) Detection and Monitoring Network Efforts. 36th Natural Areas Conference. Vancouver, WA.

Wersal, R. M., & Madsen, J. D. (2009). Combinations of Penoxsulam and Diquat as Foliar Applications for Control of Waterhyacinth and Common Salvinia: Evidence of Herbicide Antagonism. 28th Annual Meeting of the MidSouth Aquatic Plant Management Society. Guntersville, AL.

Wersal, R. M., & Madsen, J. D. (2009). Growth of Parrotfeather (Myriophyllum Aquaticum Vell. Verc.) as Regulated by Water Depth. 28th Annual Meeting of the MidSouth Aquatic Plant management Society. Guntersville, AL.

Madsen, J. D., & Ervin, G. N. (2009). The Invasive Plant Atlas of the MidSouth. M. MidSouth Aquatic Plant Management Society Annual Meeting. Guntersville, AL.

Madsen, J. D., Wersal, R. M., & Getsinger, K. D. (2009). Combinations of Endothall with 2,4-D and Triclopyr for Enhanced Control of Eurasian Watermilfoil with Short Contact Times. MidSouth Aquatic Plant Management Society Annual Meeting. Guntersville, AL.

Prince Czarnecki, J. M., Madsen, J. D., Shaw, D. R., Brooks, C. P., & Martin, James L. (2009). Modeling Eurasian Watermilfoil (Myriophyllum Spicatum) with Geographic Information Systems. Midsouth Aquatic Plant Management Society Conference. Lake Guntersville State Park, AL. [Abstract]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2009). The Influence of Species and Water Depth on Aquatic Plant Re-establishment in Little Bear Creek Reservoir, Alabama. Midsouth Aquatic Plant Management Society 28th Annual Conference. Guntersville, AL.

Cheshier, J., & Madsen, J. D. (2009). The Use of Aquatic Herbicides to Control Common Reed: Phragmites Australis (Cav.) Trin. Ex. Steud. Midsouth Aquatic Plant Management Sociey, 27th Annual Meeting. Guntersville, AL.

Madsen, J. D. (2009). Major Aquatic Weed Problems in the MidSouth: Identification and Specific Recommendations for Management. MidSouth Aquatic Plant Management Society Annual Meeting. Guntersville, AL.

Cox, M. C., Wersal, R. M., & Madsen, J. D. (2009). Distribution and Management of Invasive Plant Species in the Ross Barnett Reservoir. Mid-South Aquatic Plant Management Society Annual Meeting. Guntersville, AL. [Document]

Wersal, R. M., & Madsen, J. D. (2009). Effects of Water Depth on the Growth of Parrotfeather (Myriophyllum Aquaticum Vell. Verc.). 49th Annual Meeting of the Aquatic Plant Management Society. Milwaukee, WI.

Cheshier, J., & Madsen, J. D. (2009). The Use of Aquatic Herbicides to Control Common Reed: Phragmites Australis (Cav.) Trin. Ex. Steud. Aquatic Plant Management Society 49th Annual Meeting. Milwaukee, WI.

Madsen, J. D., Wersal, R. M., & Getsinger, K. D. (2009). Efficacy of Combinations of Endothall with 2,4-D and Triclopyr for Enhanced Control of Eurasian Watermilfoil with Low Contact Time. Aquatic Plant Management Society Annual Meeting. Milwaukee, WI.

Madsen, J. D., & Ervin, G. N. (2009). Update on the Invasive Plant Atlas of the MidSouth. Mississippi Exotic Pest Plant Council. Jackson, MS.

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2009). Aquatic Plant Restoration for Habitat Enhancement in Little Bear Creek Reservoir, Alabama. Southeastern Natural Resources Graduate Student Symposium 2nd Annual Meeting. Starkville, MS.

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2009). Submerged Aquatic Macrophyte Re-Vegetation Efforts for Fish Habitat in Little Bear Creek Reservoir, Alabama. Mississippi Chapter of the American Fisheries Society 35th Annual Meeting. Biloxi, MS. [Document]

Wersal, R. M., & Madsen, J. D. (2009). Comparison of Subsurface and Foliar Herbicide Applications for Control of Parrotfeather (Myriophyllum Aquaticum). Weed Science Society of America 49th Annual Meeting. Orlando, FL.

Madsen, J. D. (2009). Introduction to the Symposium: Invasive Plant Web-Accesible Databases and Volunteer Monitoring Programs. Weed Science Society of America 2009 Annual Meeting,. Orlando, FL. [Abstract]

Prince Czarnecki, J. M., Shaw, D. R., Madsen, J. D., Harvill, J. L., Ervin, G. N., Samson, S., & Martin, James L. (2009). Local-scale GIS Modeling of Eurasian Watermilfoil. Proceedings Southern Weed Science Society /Weed Science Society of America Abstracts. Orlando, FL. [Abstract]

Fleming, J. P., Cheshier, J., & Madsen, J. D. (2008). The Role of GIS in Aquatic Plant Management and Restoration. University of North Alabama Geography Alumni Association 4th Annual Conference. Florence, AL.

Fleming, J. P., Cheshier, J., & Madsen, J. D. (2008). Restoring Native Aquatic Vegetation in Little Bear Creek Reservoir, Alabama. Midsouth Aquatic Plant Management Society 27th Annual Conference. Mobile, AL.

Ervin, G. N., Holly, D. C., Shaw, D. R., Prince Czarnecki, J. M., Byrd, J. D., Grado, S. C., Measells, M., & Madsen, J. D. (2008). Effects of Patch-scale Human Disturbance on Invasive Species Spread Override Hurricane-mediated Landscape Change. 93rd Meeting of the Ecological Society of America. Milwaukee, WI.

Cheshier, J., Wersal, R. M., & Madsen, J. D. (2008). Combinations of Diquat and Methylated Seed Oil for Control of Duckweed and Watermeal. Aquatic Plant Management Society 48th Annual Meeting. Charleston, SC.

Wersal, R. M., & Madsen, J. D. (2008). Comparison of Subsurface and Foliar Herbicide Applications for Control of Parrotfeather (Myriophyllum Aquaticum Vell. Verdc.). 48th Annual Aquatic Plant Management Society Meeting. Charleston, SC.

Wersal, R. M., & Madsen, J. D. (2008). Influences of Water Column Nutrient Loading on the Growth of Parrotfeather (Myriophyllum Aquaticum Vell. Verdc.). 48th Annual Aquatic Plant Management Society Meeting,. Charleston, SC.

Madsen, J. D., Wersal, R. M., & Woolf, T. E. (2008). Eurasian Watermilfoil Monitoring and Eradication Assessment in the Pend Oreille Lake and River System, Idaho. Aquatic Plant Management Society Annual Meeting (July 13-16 2008). Charleston, SC.

Madsen, J. D., Wersal, R. M., & Woolf, T. E. (2008). Eurasian Watermilfoil Monitoring and Eradication Assessment in the Pend Oreille Lake and River System, Idaho. Fifth International Weed Science Congress (23-27 June 2008). Vancouver, British Columbia, Canada.

Cheshier, J., & Madsen, J. D. (2008). Digitial Growth of Common Reed Phragmites Australis Cav. Trin. Ex. Steud. Southeast Exotic Pest Plant Council 10th Annual Meeting (May 20-22). Biloxi, MS.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2008). Assessing Herbicide Efficacy and Aquatic Plant Community Changes in the Ross Barnett Reservoir, MS. Southeastern Exotic Pest Plant Council 10th Annual Symposium. Biloxi, MS.

Wersal, R. M., & Madsen, J. D. (2008). Comparison of Subsurface and Foliar Herbicide Applications for Control of Parrotfeather (Myriophyllum Aquaticum (Vell.) Verdc.). Southeastern Exotic Pest Plant Council 10th Annual Symposium. Biloxi, MS.

Wersal, R. M., & Madsen, J. D. (2008). Comparison of Imazapyr and Imazamox for Control of Parrotfeather (Myriophyllum Aquaticum (Vell.) Verdc.). Southeastern Exotic Pest Plant Council 10th Annual Symposium. Biloxi, MS.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2008). Monitoring Non-native Plant Populations in the Ross Barnett Reservoir, MS. Southeastern Exotic Pest Plant Council 10th Annual Symposium. Biloxi, MS.

Maddox, V. L., Byrd, J., Madsen, J. D., & Westbrooks, R. (2008). Seed Germination of Selected Maidengrass (Miscanthus Spp.) Cultivars and Varieties. Southeast Exotic Pest Plant Council 10th Annual Symposium. Biloxi, MS.

Robles, W., Madsen, J. D., Maddox, V. L., & Wersal, R. M. (2008). Current Distribution of Giant Salvinia and Hydrilla in Mississippi: Three Years Surveying. Southeast Exotic Pest Plant Council 10th Annual Symposium. Biloxi, MS.

Cheshier, J., Madsen, J. D., & Wersal, R. M. (2008). Duckweed Control In Mississippi Waters. Mississippi Water Resources Research Institute 38th Annual Meeting (April 15-16). Jackson, MS.

Wersal, R. M., & Madsen, J. D. (2008). Influences of Light Intensity Variations on Growth Characteristics of Parrotfeather (Myriphyllum Aquaticum). 38th Annual Mississippi Water Resources Conference.

Robles, W., Madsen, J. D., & Maddox, V. L. (2008). Reservoir Study for Invasive and Native Aquatic Plant Species within the Pat Harrison Waterway District. Mississippi Water Resources 38th Annual Conference. Jackson, MS.

Cheshier, J., Madsen, J. D., & Wersal, R. M. (2008). Common Reed Phragmites Australis Cav. Trin. Ex. Steud: Life History in the Mobile River Delta, AL. Western Society of Weed Science 61st Annual Meeting. Anaheim, CA.

Wersal, R. M., Madsen, J. D., Getsinger, K., & Nelson, L. S. (2008). Sensitivity of Wild Rice (Zizania Aquatica) to the Aquatic Herbicide Triclopyr. Midwest Aquatic Plant Management Society 28th Annual Meeting (March 1-3). Sanduskey, OH.

Cheshier, J., Madsen, J. D., & Kaminski, R. M. (2008). Chemical Control of Swamp Smartweed (Polygonum Hydropiperoides Michx.). Inaugural Southeastern Natural Resources Graduate Student Symposium (March 26-28). Starkville, MS.

Madsen, J. D., Wersal, R. M., & Woolf, T. E. (2008). Eurasian Watermilfoil Monitoring and Eradication Assessment in the Pend Oreille Lake and River System, Idaho. Western Aquatic Plant Management Society Annual Meeting (3-5 March 2008). LakeTahoe, CA.

Madsen, J. D., Getsinger, K., & Wersal, R. M. (2008). Combinations of Endothall with 2,4-D and Triclopyr for Control of Eurasian Watermilfoil. Western Aquatic Plant Management Society Annual Meeting (3-5 March 2008). LakeTahoe, CA.

Cheshier, J., Madsen, J. D., & Wersal, R. M. (2008). Common Reed (Phragmites Australis Cav. Trin. Ex. Steud): Life History in the Mobile River Delta, AL. Midwest Aquatic Plant Management Society 28th Annual Meeting, March 1-3 2008. Sandusky, OH.

Robles, W., & Madsen, J. D. (2008). Using Landsat 5 TM Imagery to Assess the Efficacy of a Broadcast Herbicide Application for Control of Waterhyacinth (Eichhornia Crassipes). GIS for Invasive Weed Management Workshop. Weed Science Society of America Annual Meeting. Chicago, IL.

Wersal, R. M., & Madsen, J. D. (2008). Comparison of Imazapyr and Imazamox Herbicides for Control of Parrotfeather (Myriophyllum Aquaticum (Vell.) Verdc.). Weed Science Society of America 48th Annual Meeting. Chicago, IL.

Madsen, J. D., Wersal, R. M., & Woolf, T. E. (2008). Eurasian Watermilfoil Monitoring and Eradication Assessment in the Pend Oreille Lake and River System, Idaho. Weed Science Society of America Annual Meeting (4-8 FEB 2008). Chicago, IL.

Madsen, J. D. (2008). GIS for Invasive Aquatics Management. Weed Science Society of America Annual Meeting (4-8 FEB 2008). Chicago, IL.

Madsen, J. D., Wersal, R. M., & Robles, W. (2008). Using GIS for Management and Assessment of Invasive Aquatic Plants. Weed Science Society of America Annual Meeting (4-8 FEB 2008). Chicago, IL.

Prince Czarnecki, J. M., Shaw, D. R., Byrd, J. D., Holly, D. C., Ervin, G. N., Grado, S. C., & Madsen, J. D. (2008). Modeling the Spread of Invasive Weedy Species Following Natural Disasters. Proceedings Southern Weed Science Society. Jacksonville, FL. [Abstract]

Madsen, J. D., & Wersal, R. M. (2008). Herbicide Formulations for Managing Free-floating Aquatic Plants. Southern Weed Science Society (Jan. 28-30, 2008). Jacksonville, FL. 61, 210. [Document]

Madsen, J. D. (2007). Aquatic Weed Control. Mississippi Vegetation Management Association (November 13-14, 2007). Jackson, MS.

Madsen, J. D. (2007). Problematic Aquatic Plants of the MidSouth. Aquatic Plant Management Society 47th Annual Meeting (15-18 July 2007). Nashville, TN.

Madsen, J. D., Getsinger, K., & Wersal, R. M. (2007). Endothall Combinations with 2,4-D and Triclopyr for Control of Eurasian Watermilfoil. Aquatic Plant Management Society 47th Annual Meeting (15-18 July 2007). Nashville, TN.

Madsen, J. D., Getsinger, K., & Wersal, R. M. (2007). Wild Rice (Zizania Aquatica L.) Susceptibility to the Aquatic Herbicide Triclopyr. Aquatic Plant Management Society 47th Annual Meeting (15-18 July 2007). Nashville, TN.

Robles, W., & Madsen, J. D. (2007). Detection of Herbicide Injury on Waterhyacinth Using Landsat 5 TM Simulated Data. Nashville, TN.

Cheshier, J., & Madsen, J. D. (2007). Digital Growth of Common Reed (Phragmites Australis (Cav.) Trin Ex Steud). Aquatic Plant Management Society 47th Annual Meeting (15-18 July 2007). Nashville, TN.

Robles, W., & Madsen, J. D. (2007). Seasonal Biomass Detection of Waterhyacinth Using Normalized Difference Vegetation Index Derived from Landsat 5 TM Simulated Data. Aquatic Plant Management Society 47th Annual Meeting. Nashville, TN.

Wersal, R. M., & Madsen, J. D. (2007). Influences of Light Intensity Variations on Growth Characteristics of Parrotfeather (Myriophyllum Aquaticum (Vell.) Verdc.). 47th Annual Meeting of the Aquatic Plant Management Society.

Wersal, R. M., & Madsen, J. D. (2007). Comparison of Imazapyr and Imazamox for Control of Parrotfeather (Myriophyllum Aquaticum (Vell.) Verdc.). Aquatic Plant Management Society 47th Annual Meeting (15-18 July 2007). Nashville, TN.

Ervin, G. N., & Madsen, J. D. (2007). Developing an Invasive Plant Atlas for the Mid-South. Society of Wetland Scientists International Meeting (June 10-15, 2007). Sacramento, CA.

Madsen, J. D. (2007). U.S. Geological Survey - MSU Cactus Moth Detection Network. International Cactoblastis cactorum Conference (7-10 May 2007). Phoenix, AZ.

Maddox, V. L., & Madsen, J. D. (2007). Use of the USGS Cactus Moth Detection Network. International Cactoblastis cactorum Conference. Desert Botanical Garden, Phoenix, AZ.

Cheshier, J., Madsen, J. D., & Wersal, R. M. (2007). Common Reed Phragmites Australis Cav. Trin. Ex. Steud: Life History in the Mobile River Delta, AL. 37th Annual Mississippi Water Resources Conference (24-25 April 2007). Jackson, MS. [Document]

Madsen, J. D. (2007). Ecologically-based Invasive Aquatic Plant Management: Using Life History Analysis to Manage Aquatic Weeds. 37th Annual Mississippi Water Resources Conference (24-25 April 2007). Jackson, MS. [Document]

Robles, W., Madsen, J. D., Maddox, V. L., & Wersal, R. M. (2007). The Invasive Status of Giant Salvinia and Hydrilla in Mississippi. 37th Annual Mississippi Water Resources Conference. Jackson, MS. CD-Rom, 109-113. [Document]

Madsen, J. D., Ervin, G. N., Maddox, V. L., Byrd, J., Westbrooks, R., & Mehrhoff, L. J. (2007). Integrating Effects of Land Use Change on Invasive Plant Species Distribution into an Invasive Plant Atlas for the Mid-South (IPAMS). 9th Annual Southeast Exotic Pest Plant Council Symposium. Athens, GA.

Madsen, J. D., Getsinger, K., & Wersal, R. M. (2007). Combinations of Endothall with 2,4-D and Triclopyr for the Control of Eurasian Watermilfoil. Midwest Aquatic Plant Management Society 27th Annual Meeting (March 3-5, 2007). Milwaukee, WI.

Madsen, J. D. (2007). Evaluating Environmental Impacts of Aquatic Plant Management Techniques: Examining Direct Ann Indirect Effects. Western Aquatic Plant Management Society 26th Annual Meeting (25-27 March 2007). Couer D?Alene, ID.

Madsen, J. D. (2007). Biology and Ecology of Eurasian Watermilfoil. Western Aquatic Plant Management Society 26th Annual Meeting (25-27 March 2007). Couer D?Alene, ID.

Wersal, R. M., & Madsen, J. D. (2007). The Phenology, Ecology, and Management of Parrotfeather (Myriophyllum Aquaticum Vell. Verdc.): An Overview of My Dissertation Research. Midwest Aquatic Plant Management Society 27th Annual Conference (March 3-5 2007). Milwaukee, WI.

Madsen, J. D., & Ervin, G. N. (2007). Integrating Effects of Land Use Change on Invasive Plant Species Distribution into an Invasive Plant Atlas for the Mid-South (IPAMS). Southern Weed Science Society Annual Meeting (22-24 January 2007). Nashville, TN.

Madsen, J. D., & Ervin, G. N. (2007). Integrating Effects of Land Use Change on Invasive Plant Species Distribution into an Invasive Plant Atlas for the Mid-South (IPAMS). Weed Science Society of America 47th Annual Meeting (5-8 February 2007). San Antonio, TX.

Madsen, J. D., Getsinger, K., & Wersal, R. M. (2007). Sensitivity of Wild Rice (Zizania Aquatica L.) to the Aquatic Herbicide Triclopyr. Weed Science Society of America 47th Annual Meeting (5-10 February 2007). San Antonio, TX.

Madsen, J. D., Getsinger, K., & Wersal, R. M. (2007). Combinations of Endothall with 2,4-D and Triclopyr for Control of Eurasian Watermilfoil. Northeast Aquatic Plant Management Society Eighth Annual Meeting (15-17 January 2007). West Dover, VT.

Wersal, R. M., & Madsen, J. D. (2007). The Phenology, Ecology, and Management of Parrotfeather (Myriophyllum Aquaticum Vell. Verdc.). Midwest Aquatic Plant Management 27th Annual Meeting.

Cheshier, J., Madsen, J. D., & Wersal, R. M. (2006). Common Reed: Phragmites Australis Cav. Trin. Ex. Steud: Life History in the Mobile River Delta, AL. Midsouth Aquatic Plant Management Society 25th Annual Meeting.

Madsen, J. D., Getsinger, K., & Wersal, R. M. (2006). Combinations of Endothall with 2,4-D and Triclopyr for Control of Eurasian Watermilfoil. Midsouth Aquatic Plant Management Society 25th Annual Meeting.

Robles, W., Madsen, J. D., Maddox, V. L., & Wersal, R. M. (2006). The Invasive Status of Giant Salvinia and Hydrilla in Mississippi. Midsouth Aquatic Plant Management Society 25th Annual Meeting.

Maddox, V. L., Madsen, J. D., Brown, R. L., Abbott, C. F., Westbrooks, R., Floyd, J. F., & Simpson, A. (2006). Collaborative Effort to Protect Native Southwestern Pricklypear (Opuntia P. Mill.) from the Invasive Cactus Moth (Cactoblastis Cactorum Berg.). 33rd Annual Natural Areas Conference. Northern Arizona University. Flagstaff, AZ.

Wersal, R. M., & Madsen, J. D. (2006). Giant Salvinia (Salvinia Molesta Mitchell) Growth as Regulated by PH and Available Nutrients. Aquatic Plant Management Society 46th Annual Meeting.

Cheshier, J., Wersal, R. M., & Madsen, J. D. (2006). Efficacy of Three Aquatic Herbicides for Control of Swamp Smartweed. Aquatic Plant Management Society 46th Annual Meeting.

Cheshier, J., & Madsen, J. D. (2006). The Biology, Ecology, and Management of Common Reed (Phragmites Australis (Cav.) Trin. Ex Steud ). Southern Association of Marine Educators Annual Meeting (June 25-30). Dauphin Island, AL.

Robles, W., & Madsen, J. D. (2006). Using Land-sat TM Imagery to Monitor Spatial Changes of Waterhyacinth after Broadcast Herbicide Application. Aqautic Plant Management Society. Portland, OR. [Document]

Byrd, J., Madsen, J. D., Maddox, V. L., & Shaw, D. R. (2006). Impact of Natural Disasters on Invasive Weed Spread. Weeds Across Borders 2006 Conference. Hermosillo, Sonora, Mexico.

Ervin, G. N., & Madsen, J. D. (2006). Predictive Habitat Modeling in Support of Integrated Invasive Species Management in the MidSouth. Proceedings of the 1st All-USGS Modeling Conference(November 14-17, 2005) USGS Scientific Investigations Report #2006-5308. Olympic Park Institute, WA.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2006). Survey of Invasive and Native Aquatic Plants in the Ross Barnett Reservoir. Proceedings of the 36th Annual Mississippi Water Resources Conference. 36, 55-58. [Document]

Madsen, J. D. (2006). Techniques for Managing Invasive Aquatic Plants in Mississippi Water Resources. Proceedings of the 36th Annual Mississippi Water Resources Conference. 36, 42-51. [Document]

Robles, W., & Madsen, J. D. (2006). Aquatic Vegetation Diversity in Lake Columbus, Lowndes County, MS. Proceedings of the 36th Annual Mississippi Water Resources Conference. 36, 52-54.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2006). The Use of Hand Held Computers for Mapping Aquatic Macrophytes during Point Intercept Surveys. Southeastern Lakes Management Society Annual Meeting.

Cheshier, J., & Madsen, J. D. (2006). Common Reed: Phragmites Australis (Cav.) Trin. Ex Steud: Biology, Ecology, Distribution and Management. 15th Annual NALMS Southeastern Lake and Watershed Management Conference. Columbus, GA.

Robles, W., & Madsen, J. D. (2006). Rate Response and Biomass Reduction of Waterhyacinth by Imazapyr and Glyphosate. 15th Annual NALMS Southeastern Lake and Watershed Management Conference. Columbus, GA.

Robles, W., & Madsen, J. D. (2006). Rate Response and Biomass Reduction of Waterhyacinth by Imazapyr and Glyphosate. 15th Annual NALMS Southeastern Lake and Watershed Management Conference. Columbus, GA.

Madsen, J. D. (2006). Management of Aquatic Weeds and Algae. Central Kentucky Ornamental and Turf Association 26th Conference. Lexington, KY.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2006). Mapping Invasive Macrophytes in the Ross Barnett Reservoir, Jackson, MS. Southern Weed Science Society Annual Meeting. San Antonio, TX.

Cheshier, J., Wersal, R. M., & Madsen, J. D. (2005). Comparison of Three Aquatic Herbicides for the Control of Swamp Smartweed. MidSouth Aquatic Plant Management Society Annual Meeting.

Madsen, J. D., & Getsinger, K. (2005). Selective Control of Invasive Submersed Aquatic Plants. Midsouth Aquatic Plant Managment Society 24th Annual Meeting.

Robles, W., Madsen, J. D., Mathur, A., & Bruce, L.M. (2005). Ground-truthed Hyperspectral Data for Remote Sensing of Waterhyacinth. MidSouth Aquatic Plant Management Society 24th Annual Meeting. Tunica, MS.

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2005). Invasive Plant Survey of Ross Barnett Reservoir. MidSouth Aquatic Plant Management Society Annual Meeting.

Jernigan, J., & Madsen, J. D. (2005). Management of Eurasian Watermilfoil for Small-scale Restoration of Native Vegetation in Mobile Delta, Alabama. Aquatic Plant Management Society. San Antonio, TX.

Robles, W., Madsen, J. D., Mathur, A., & Bruce, L.M. (2005). Hyperspectral Data to Differentiate Waterhyacinth from Common Rush. Aquatic Plant Management Society. San Antonio, TX.

Wersal, R. M., Madsen, J. D., & McMillan, B. R. (2005). Environmental Factors Affecting Biomass and Distribution of Stuckenia Pectinata in the Heron Lake System, Jackson County, Minnesota. Aquatic Plant Management Society Annual Meeting.

Mathur, A., Bruce, L.M., Robles, W., & Madsen, J. D. (2005). Feature Extraction via Spectro-Temporal Analysis of Hyperspectral Data for Vegetative Targect Detection. Multi-Temp 2005: Third International Workshop on the Analysis of Multi-temporal Remote Sensing Images.

Madsen, J. D. (2005). Developing Plans for Managing Invasive Aquatic Plants in Mississippi Water Resources. Proceedings, Mississippi Water Resources Conference. Jackson, MS. 35, 143-151. [Document]

Madsen, J. D. (2005). A Comparison of Management Techniques and the No-Management Option for Invasive Aquatic Plants. 27th Annual Wisconsin Lakes Convention. Green Bay, WI.

Madsen, J. D., Byrd, J., Shaw, D. R., & Westbrooks, R. (2005). Developing a State Invasive Species Alliance for Mississippi. Western Aquatic Plant Management Society.

Madsen, J. D., & Woolf, T. E. (2005). Ecology, Life History, Phenology, and Management of Curlyleaf Pondweed in Minnesota. Western Aquatic Plant Management Society 2005 Annual Meeting. Denver, CO.

Gray, C. J., Madsen, J. D., Wersal, R. M., Getsinger, K., Poovey, A. G., & Glomski, L. A. M. (2005). Eurasian Watermilfoil (Myriophyllum Spicatum) and Parrotfeather (Myriophyllum Aquaticum) Control with Carfentrazone-Ethyl in Combination with 2,4-D. Weed Science Society of America. CDRom.

Madsen, J. D., Byrd, J., Shaw, D. R., & Westbrooks, R. (2005). Developing a State Invasive Species Alliance for Mississippi. Weed Science Society of America.

Madsen, J. D., Byrd, J., Shaw, D. R., & Westbrooks, R. (2004). Developing a State Invasive Species Alliance for Mississippi. Aquatic Plant Management Society.

Cofrancesco, A. F., McFarland, D. G., Madsen, J. D., Poovey, A. G., & Jones, H. L. (2004). Impacts of Euhrychiopsis Lecontei (Dietz) from Different Populations on the Growth and Nutrition of Eurasian Watermilfoil. ERDC/TN APCRP-BC-07, U.S. Army Engineer Research and Development Center. Vicksburg, MS.

Madsen, J. D. (2004). Invasive Aquatic Plants: A Threat to Mississippi Water Resources. 2004 Proceedings, Mississippi Water Resources Conference. CDRom, 122-134. [Document]

Madsen, J. D. (2004). Invasive Species Management Tour: Lower Coastal Plain Habitat Restoration. Wildland Weeds. 8(1), 10.

Madsen, J. D. (2004). Mississippi Weed Management Guide (J. Byrd, Ed.). Mississippi State University. 149-152.

Madsen, J. D., Byrd, J., Shaw, D. R., & Westbrooks, R. (2003). Developing a State Invasive Species Alliance for Mississippi. MidSouth Aquatic Plant Management Society.

Grodowitz, M. J., Cofrancesco, A. F., Stewart, R. M., Madsen, J. D., & Morgan, D. (2003). Possible Impact of Lake Seminole Hydrilla by the Introduced Leaf-Mining Fly Hydrellia Pakistanae. Technical Report ERDC/EL TR-03-18, US Army Engineer Research and Development Center. Vicksburg, MS.

Non-Refereed Conference Posters
Sartain, B. T., Wersal, R. M., & Madsen, J. D. (2012). Variations in Water Exchange Characteristics Among Hydrilla (Hydrilla Verticillata (L.f.) Royle) Sites in the Ross Barnett Reservoir. Aquatic Plant Management Society Annual Meeting. Salt Lake City UT: July 23-26 2012: Geosystems Research Institute. [Document]

Madsen, J. D., & Ervin, G. N. (2010). An Update on the Invasive Plant Atlas of the MidSouth. Weeds Across Borders 2010. Sheperdstown, WV.

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2009). The Influence of Species and Water Depth on Aquatic Plant Re-establishment in Little Bear Creek Reservoir, Alabama. International Aquatic Plant Management Society 49th Annual Conference. Milwaukee, WI.

Cheshier, J., & Madsen, J. D. (2009). Flowering Rush (Butomus Umbellatus L.): a New Invader to the Northwest. Aquatic Plant Management Society 49th Annual Meeting. Milwaukee, WI.

Cox, M. C., Wersal, R. M., & Madsen, J. D. (2009). Distribution and Management of Invasive Aquatic Plants in the Ross Barnett Reservoir, MS. Aquatic Plant Management Society Annual Conference. Milwaukee, WI. [Abstract]

Cheshier, J., & Madsen, J. D. (2009). Common Reed: Phragmites Australis Cav. Trin. Ex Steud: Life History in the Mobile River Delta, Alabama. Weed Science Society of America. Orlando, FL.

Cheshier, J., Madsen, J. D., & Kaminski, R. M. (2008). Herbicidal Management of Common Problem Plants in Waterfowl Habitat. Mississippi Chapter of the Wildlife Society Annual Meeting. Jackson, MS.

Ervin, G. N., & Madsen, J. D. (2008). Developing an Invasive Plant Atlas for the Mid-South. 93rd Meeting of the Ecological Society of America. Milwaukee, WI.

Fleming, J. P., Cheshier, J., & Madsen, J. D. (2008). Restoring Native Aquatic Vegetation in Little Bear Creek Reservoir, Alabama. International Aquatic Plant Management Society 48th Annual Conference. Charleston, SC.

Articles in Trade Journals and Popular Press
Madsen, J. D. (2013). Aquatic Plant Ecology Meets the Science of Plant Management. LakeLine. Madison, WI: North American Lake Management Society. 33(3), 14-18. [Document]

Madsen, J. D. (2008). Aquatic Weeds of the Mississippi Delta. Delta Wildlife. 16(2), 22-28.

Getsinger, K., Moore, M. D., Layne, C. P., Petty, D. G., L, S., Sprecher, Dibble, E. D., Karcas, E., Maceina, M., Mudrak, V., Lembi, C., Madsen, J. D., Stewart, R. M., Anderson, L., Haller, W., Confrancesco, A., Newman, R., & Nibling, F. (2005). Aquatic Plant Management Best Management Practices in Support of Fish and Wildlife Habitat. Aquatic Ecosystem Restoration Foundation. Lansing, MI.

Getsinger, K., Moore, M. D., Dibble, E. D., Kafcas, E., Maceina, M., Mudrak, V., Lembi, C., Madsen, J. D., Stewart, R. M., Anderson, L., Haller, W., Layne, C. P., Cofrancesco, A. F., Newman, R., Nibling, F., & Englehard, K. (2004). Aquatic Plant Management Best Management Practices Handbook in Support of Fish and Wildlife Habitat. Aquatic Ecosystem Restoration Foundation. Lansing, MI.

In-House
Sartain, B. T., Turnage, G., & Madsen, J. D. (2014). Aquatic Plant Community and Invasive Plant Management Assessment of the Ross Barnett Reservoir, MS in 2013. GRI Report #5062. Mississippi State University, Mississippi State, MS: Geosystems Research Institute. 34. [Document]

Turnage, G., & Madsen, J. D. (2014). Littoral Survey of Noxon and Cabinet Gorge Reservoirs, Montana, 2013. GRI Report #5061. Mississippi State University: Geosystems Research institute. 82. [Document]

Watson, A. F., & Madsen, J. D. (2013). Lake Havasu 2012 Aquatic Plant Monitoring Report. GRI Report #4009. Mississippi State University: Geosystems Research Institute. [Document]

Turnage, G., Duncan, C., & Madsen, J. D. (2013). Aquatic Invasive Plant Survey for Eurasian Watermilfoil and Curlyleaf Pondweed in the Bighorn Reservoir, Montana and Wyoming. GRI Report #5060. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., Sartain, B. T., Turnage, G., & Marko, M. (2013). Herbicide Trials for Management of Flowering Rush in Detroit Lakes, Minnesota for 2012. Geosystems Research Institute Report 5059. Mississippi State University: Geosystems Research Institute. [Document]

Sartain, B. T., & Madsen, J. D. (2013). Ross Barnett Backwater Restoration: 2012 Pilot Project. GRI Report #5056. Mississippi State University: Geosystems Research Institute. [Document]

Sartain, B. T., Madsen, J. D., & Wersal, R. M. (2013). Aquatic Plant Community and Invasive Plant Management Assessment of the Ross Barnett Reservoir, MS in 2012. Geosystems Research Institute Report 5057. Mississippi State University: Geosystems Research Institute. [Document]

Turnage, G., Duncan, C., & Madsen, J. D. (2013). Aquatic Invasive Plant Survey of Selected Montana Waters for 2012: Addendum - Yellowstone River. Geosystems Research Institute Report 5055A. Mississippi State University: Geosystems Research Institute. [Document]

Turnage, G., Duncan, C., & Madsen, J. D. (2013). Aquatic Invasive Plant Survey for Eurasian Watermilfoil and Curlyleaf Pondweed in Yellowtail Reservoir, Wyoming. Geosystems Research Institute Report 5058. Mississippi State University: Geosystems Research Institute. [Document]

Turnage, G., Duncan, C., & Madsen, J. D. (2012). Aquatic Invasive Plant Survey of Selected Montana Waters for 2012. GRI Report #5055. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., Wersal, R. M., Marko, M. D., & Skogerboe, J. G. (2012). Ecology and Management of Flowering Rush (Butomus Umbellatus) in the Detroit Lakes, Minnesota. GRI Report #5054. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., Wersal, R. M., Watson, A. F., & Turnage, G. (2012). Lake Havasu Aquatic Plant Monitoring 2011 Interim Report. GRI Report #4008. Mississippi State University: Geosystems Research Institute. [Document]

Sartain, B. T., Madsen, J. D., & Wersal, R. M. (2012). Aquatic Plant Community Assessment within the Littoral Zone of the Ross Barnett Reservoir, MS in 2011: A Seven Year Evaluation. GRI Report #5053. Mississippi State University: Geosystems Research Institute. [Document]

Turnage, G., Watson, A. F., Sartain, B. T., & Madsen, J. D. (2012). 2011 Mississippi Survey for Hydrilla and Giant Salvinia. GRI Report #5052. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., Amburn, P., Brown, R., Dibble, E. D., Ervin, G. N., Abbott, C. F., Brooks, C., Irby, D., Lee, S. M., Maddox, V. L., Schulz, R., Wasson, L. L., Wersal, R. M., Woolf, T., McBride, D. W., & Madsen, N. (2012). Research to Support Integrated Management Systems of Aquatic and Terrestrial Invasive Species. Geosystems Research Institute Report GRI#5051. Mississippi State University: Geosystems Research Institute. [Document]

Wersal, R. M., Fleming, J. P., Duncan, C., & Madsen, J. D. (2011). Aquatic Invasive Plant Survey of the Missouri River Headwaters Area, Montana. Mississippi State University: Geosystems Research Institute. 97. [Document]

Woolf, T. E., Madsen, J. D., & Wersal, R. M. (2011). Flowering Rush Control Project for Lake Pend Oreille, Idaho: Preliminary Summary on Mesocosm and Field Evaluations Preliminary. Mississippi State University: Geosystems Research Institute. [Document]

Wersal, R. M., & Madsen, J. D. (2011). Plant Community Response in Small Plots One Year after Treatment with Triclopyr and Endothall in Noxon Rapids Reservoir, MT, 2011. GRI Report # 5049. Mississippi State University: Geosystems Research Institute. 21. [Document]

Wersal, R. M., & Madsen, J. D. (2011). Evaluating Plant Response to Triclopyr Applied Alone and in Combination with Endothall in Noxon Rapids Reservoir for 2010: Phase 2. GRI Report #5046. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., Amburn, P., Brown, R. L., Dibble, E. D., Ervin, G. N., Shaw, D. R., Abbott, C. F., Baker, G., Bloem, K., Brooks, C., Irby, D., Lee, S., Maddox, V. L., Rose, R., Schulz, R., Wallace, L., Wasson, L. L., Welch, M., Wersal, R. M., McBride, D. W., & Madsen, N. (2011). Research to Support Integrated Management Systems of Aquatic and Terrestrial Invasive Species: Annual Report, 2010. GRI Report #5047. Mississippi State University: Geosystems Research Institute. [Document]

Cox, M. C., Madsen, J. D., & Wersal, R. M. (2011). Aquatic Plant Distribution Assessment within the Littoral Zone of the Ross Barnett Reservoir, MS in 2010: A Six Year Evaluation. GRI Report #5044. Mississippi State University: Geosystems Research Institute. [Document]

Cox, M. C., & Madsen, J. D. (2011). Estimation of Alligatorweed (Alternanthera Philoxeroides (Mart.) Griseb.) and Waterhyacinth (Eichhornia Crassipes (Mart.) Solms) Distribution in the Ross Barnett Reservoir Using Remote Sensing Techniques. GRI Report #5045. Mississippi State University: Geosystems Research Institute. [Document]

Wersal, R. M., Madsen, J. D., & Cheshier, J. (2010). Aquatic Plant Monitoring In Noxon Rapids Reservoir and Cabinet Gorge Reservoir for 2010. Mississippi State University: Geosystems Research Institute Report 5042. 18. [Document]

Cox, M. C., & Madsen, J. D. (2010). 2010 Mississippi Survey for Hydrilla and Giant Salvinia. GRI Report # 5043. Mississippi State University: Geosystems Research Institute. 12. [Document]

Madsen, J. D., Brown, R. L., Ervin, G. N., Shaw, D. R., Abbott, C. F., Maddox, V. L., Wersal, R. M., McBride, D. W., & Madsen, N. (2010). Research to Support Integrated Management Systems of Aquatic and Terrestrial Invasive Species. GRI#5039. Mississippi State University: Geosystems Research Institute. 41. [Document]

Cox, M. C., Madsen, J. D., & Wersal, R. M. (2010). Aquatic Plant Community Assessment within the Littoral Zone of the Ross Barnett Reservoir, MS in 2009: A Five Year Evaluation. GRI Report 5038. Mississippi State University: Geosystems Research Institute. [Document]

Cox, M. C., Madsen, J. D., & Wersal, R. M. (2010). Hydrilla and Giant Salvinia Survey in Mississippi for 2009. GRI Report 5037. Mississippi State University: Geosystems Research Institute. 13. [Document]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2010). Establishment of Submersed Aquatic Vegetation in Little Bear Creek Reservoir 2007-2009. Geosystems Research Institute Report 4007. Mississippi State University: Geosystems Research Institute. 15. [Document]

Madsen, J. D., & Maddox, V. L. (2009). Invasive Plant Atlas of the MidSouth Training Workshop Manual. Mississippi State University: Geosystems Research Institute.

Wersal, R. M., Madsen, J. D., & Cheshier, J. (2009). Eurasian Watermilfoil Monitoring and Mapping In Noxon Rapids Reservoir for 2009. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., Maddox, V. L., Ervin, G. N., Byrd, J. D., McBride, D. W., Madsen, N., & Stroud, B. (2009). Invasive Species Field Identification Guide. Mississippi State University: Geosystems Research Institute. 82. [Document]

Madsen, J. D., & Robles, W. (2009). Hydrilla [Hydrilla Verticillata (L.F.) Royle]. Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Madsen, J. D., & Wersal, R. M. (2009). Parrotfeather [Myriophyllum Aquaticum (Vellozo) Verdecourt]. Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Madsen, J. D., & Wersal, R. M. (2009). Purple Loosestrife (Lythrum Salicaria L.). Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Ervin, G. N., & Madsen, J. D. (2009). Roundleaf Toothcup [Rotala Rotundifolia (Roxb.) Koehne]. Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Madsen, J. D., & Robles, W. (2009). Waterhyacinth [Eichhornia Crassipes (Mart.) Solms]. Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Madsen, J. D. (2009). Alligatorweed [Alternanthera Philoxeroides (Mart.) Griseb.]. Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Madsen, J. D. (2009). Eurasian Watermilfoil (Myriophyllum Spicatum L.). Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Madsen, J. D., & Wersal, R. M. (2009). Giant Salvinia, Kariba-weed (Salvinia Molesta Marshall). Invasive Plant Atlas of the MidSouth Fact Sheet. Mississippi State University: Geosystems Research Institute. 2. [Document]

Madsen, J. D., Maddox, V. L., Brown, R. L., Abbott, C. F., & Ervin, G. N. (2009). Cactus Moth Update Newsletter, September 2009. Mississippi State University: Geosystems Research Institute. 1(2), 6 pp. [Document]

Madsen, J. D., Maddox, V. L., Brown, R. L., & Abbott, C. F. (2009). Cactus Moth Update Newsletter July 2009. Mississippi State University: Geosystems Research Institute. 1(1), 8 pp.[Document]

Madsen, J. D., Cheshier, J., Phuntumart, V., Thum, R., & Welch, M. (2009). Eurasian Watermilfoil Survey Of Three Reservoirs In The Lower Clarks Fork River, Montana: II. Taxonomic Analysis Of Native And Nonnative Watermilfoils. Geosystems Research Institute Report 5035. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., & Cheshier, J. (2009). Eurasian Watermilfoil Survey of Three Reservoirs in the Lower Clarks Fork River, Montana: I. Results of the Field Vegetation Survey. GRI Report #5033. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., Brown, R., Ervin, G. N., Shaw, D. R., Abbott, C. F., Maddox, V. L., Wersal, R. M., McBride, D. W., & Madsen, N. (2009). Research to Support Integrated Management Systems of Aquatic and Terrestrial Invasive Species: Annual Report 2008. GRI Report #5030. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., & Wersal, R. M. (2009). Aquatic Plant Community and Eurasian Watermilfoil (Myriophyllum Spicatum L.) Management Assessment in Lake Pend Oreille, Idaho for 2008. GRI Report #5032. Mississippi State University: Geosystems Research Institute. [Document]

Fleming, J. P., Madsen, J. D., & Dibble, E. D. (2009). Restoration of Submersed Aquatic Vegetation in Little Bear Creek Reservoir in 2008. GRI Report #4006. Mississippi State University: Geosystems Research Institute. [Document]

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2009). Littoral Zone Aquatic Plant Community Assessment of the Ross Barnett Reservoir, MS in 2008: A Four Year Evaluation. GRI Report #5031. Mississippi State University: Geosystems Research Institute. [Document]

Madsen, J. D., & Wersal, R. M. (2008). Assessment of Eurasian Watermilfoil (Myriophyllum Spicatum L.) Populations in Lake Pend Oreille, Idaho for 2007. GeoResources Institute, Mississippi State University. [Document]

Cheshier, J., Wersal, R. M., & Madsen, J. D. (2008). Duckweed Control Using Fluridone in Sequential Treatments. Mississippi State University: GeoResources Institute Report 4005. [Document]

Madsen, J. D., Brown, R. L., Byrd, J. D., Dibble, E. D., Ervin, G. N., Shaw, D. R., Tietjen, T. E., Abbott, C. F., Maddox, V. L., Cheshier, J., Robles, W., Wersal, R. M., McBride, D. W., & Madsen, N. (2008). Research to Support Integrated Management. Mississippi State University: GeoResources Institute. [Document]

Cheshier, J., Madsen, J. D., & Wersal, R. M. (2008). Restoring Native Aquatic Vegetation in Little Bear Creek Reservoir for 2007. Mississippi State University: GeoResources Institute. [Document]

Robles, W., Madsen, J. D., Maddox, V. L., & Wersal, R. M. (2008). 2007 Statewide Survey of the Status of Giant Salvinia and Hydrilla in Mississippi. GeoResources Institute Report. [Document]

Robles, W., Madsen, J. D., & Maddox, V. L. (2008). Reservoir Survey for Invasive and Native Aquatic Plants Species within the Pat Harrison Waterway District. GeoResources Institute. [Document]

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2008). Littoral Zone Aquatic Plant Community Assessment of the Ross Barnett Reservoir, MS for 2007. GeoResources Institute. [Document]

Madsen, J. D., & Wersal, R. M. (2007). Assessment of Eurasian Watermilfoil (Myriophyllum Spicatum L.) Populations in Lake Pend Oreille, ID, Interim Report for 2007. GeoResources Institute.

Wersal, R. M., & Madsen, J. D. (2007). Effectiveness of a Chelated Copper Algicide on Algae Grown Under Differing Water Column Phosphorus Regimes. Mississippi State University. [Document]

Maddox, V. L., & Madsen, J. D. (2007). Invasive Species Fact Sheet: Cactus Moth Host Plant, Pricklypear Cactus (Opuntia P. Mill) in Mississippi. GeoResources Institute, Mississippi State University. [Document]

Madsen, J. D. (2007). Invasive Species Fact Sheet: Curleyleaf Pondweed (Potamogeton Crispus L.). GeoResources Institute, Mississippi State University. [Document]

Madsen, J. D., Abbott, C. F., Brown, R. L., Bruce, L.M., Byrd, J., Dibble, E. D., Ervin, G. N., Maddox, V. L., Shaw, D. R., & McBride, D. W. (2007). Research to Support Integrated Management Systems of Aquatic and Terrestrial Invasive Species 2006 Annual Report. Mississippi State University: GeoResources Institute. [Document]

Floyd, J. P., & Madsen, J. D. (2007). Survey Information for the National Cactus Moth (Cactoblastis Cactorum) Detection and Monitoring Network. GeoResources Institute, Mississippi State University, Mississippi State, MS. [Document]

Madsen, J. D., Robles, W., Maddox, V. L., & Wersal, R. M. (2007). Distribution of Hydrilla and Giant Salvinia in Mississippi in 2006: An Update. GeoResources Institute, Mississippi State University, Mississippi State, MS. [Document]

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2007). Aquatic Plant Survey within the Littoral Zone of the Ross Barnett Reservoir for 2006. GeoResources Institute Report. [Document]

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Nodding Plumeless Thistle (Carduus nutans L.). Mississippi State University: GeoResources Institute.

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Shaggy-soldier (Hairy Galinsoga). (Galinsoga quadriradiata Cav.). Mississippi State University: GeoResources Institute.

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Tree of Heaven (Ailanthus altissima (P. Mill.) Swingle). Mississippi State University: GeoResources Institute.

Madsen, J. D. (2007). Assessment of Lake Gaston Hydrilla Management Efforts in 2006. GeoResources Institute, Mississippi State University, Mississippi State, MS. [Document]

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Silktree (Albizia julibrissin Durazz.). Mississippi State University: GeoResources Institute.

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Japanese Privet (Ligustrum japonicum Thunb.). Mississippi State University: GeoResources Institute.

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Chinese Privet (Ligustrum sinese Lour.). Mississippi State University: GeoResources Institute.

Ervin, G. N., & Madsen, J. D. (2007). Invasive Species Fact Sheet: Giant Reed (Arundo donax L.). Mississippi State University: GeoResources Institute.

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Japanese Honeysuckle (Lonicera japonica Thunb.). Mississippi State University: GeoResources Institute.

Ervin, G. N., Madsen, J. D., & Marsico, T. (2007). Invasive Species Fact Sheet: Nepalese Browntop (Microstegium vimineum (Trin.) A. Camus). Mississippi State University: GeoResources Institute.

Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Spiny Cocklebur (Xanthium spinosum L.). Mississippi State University: GeoResources Institute.

Madsen, J. D. (2006). Invasive Species Fact Sheet: Eurasian Watermilfoil. GRI, Mississippi State University. [Document]

Wersal, R. M., & Madsen, J. D. (2006). Invasive Species Fact Sheet: Giant Salvinia. GRI, Mississippi State University. [Document]

Wersal, R. M., & Madsen, J. D. (2006). Invasive Species Fact Sheet: Parrotfeather. GRI, Mississippi State University. [Document]

Wersal, R. M., & Madsen, J. D. (2006). Invasive Species Fact Sheet: Purple Loosestrife. GRI, Mississippi State University. [Document]

Madsen, J. D., Abbott, C. F., Brown, R. L., Bruce, L.M., Byrd, J., Dibble, E. D., Ervin, G. N., Fowler, J. E., Maddox, V. L., Shaw, D. R., & Westbrooks, R. (2006). Research to Support Integrated Management Systems of Aquatic and Terrestrial Invasive Species. Mississippi State University: GeoResources Institute. [Document]

Wersal, R. M., Madsen, J. D., & Tagert, M. L. (2006). Aquatic Plant Survey of Ross Barnett Reservoir for 2005. Ross Barnett Reservoir for 2005. [Document]

Herman, B. D., Madsen, J. D., & Ervin, G. N. (2006). Development of Coefficients of Conservatism for Wetland Vascular Flora of North and Central Mississippi. Mississippi State University, MS. 15. [Document]

Madsen, J. D., Wersal, R. M., & Robles, W. (2006). Distribution of Hydrilla and Giant Salvinia in Mississippi in 2005. GeoResources Institute, Mississippi State University. [Document]

Madsen, J. D. (2005). Assessment of Lake Gaston Hydrilla Management Efforts in 2005. GeoResources Institute, Mississippi State University, Mississippi State, MS. [Document]

Madsen, J. D., Wersal, R. M., & Tyler, M. (2004). Diversity and Distribution of Aquatic Macrophytes in Swan and Middle Lakes, Nicollet County, Minnesota. GRI. [Document]

Technical Report
Getsinger, K. D., Skogerboe, J. G., Wersal, R. M., Madsen, J. D., Nawrocki, J. J., Richardson, R. J., & Sternberg, M. R. (2014). Selective Control of Eurasian Watermilfoil and Curlyleaf Pondweed in Noxon Rapids Reservoir, Montana: Herbicide Small-Plot Evaluations, 2010-2011. ERDC/EL TR-14-4. Vicksburg, MS: US Army Engineer Research and Development Center. 50. [Document]

Getsinger, K. D., Skogerboe, J. G., Madsen, J. D., Wersal, R. M., Nawrocki, J. J., Richardson, R. J., & Sterberg, M. R. (2013). Selective Control of Eurasian Watermilfoil and Curlyleaf Pondweed in Noxon Rapids Reservoir, Montana: Aquatic Herbicide Evaluations 2009-2010. ERDC/EL TR-13-5. Vickburg, MS: US Army Engineer Research and Development Center. [Document]

Madsen, J. D., & Wersal, R. M. (2012). A Review of Aquatic Plant Monitoring and Assessment Methods. Aquatic Ecosystems Restoration Foundatin White Paper. Marietta, GA: Aquatic Ecosystems Restoration Foundation. 24. [Document]

Wersal, R. M., & Madsen, J. D. (2012). Aquatic Plants Their Uses and Risks: A Review of the Global Status of Aquatic Plants. Viale delle Terme di Caracalla, Rome, Italy: The International Plant Protection Convention, Food and Agriculture Organization, United Nations. 72. [Document]

Parkinson, H., Mangold, J., Jacobs, J., Madsen, J. D., & Halpop, J. (2011). Biology, Ecology, and Management of Eurasian Watermilfoil (Myriophyllum Spicatum L.). Montana State University: Montana State University Extension Service. EB0193, 9. [Document]

Madsen, J. D., Wersal, R. M., Getsinger, K. D., & Skogerboe, J. G. (2010). Combinations of Endothall with 2,4-D and Triclopyr for Eurasian Watermilfoil Control. APCRP Technical Notes Collection (ERDC/TN APCRP-CC-14). Vicksburg, MS: U.S. Army Engineer Research and Development Center. [Document]

Professional Presentations
Madsen, J. D. (2013). Aquatic Weed Control Update. Mississippi Vegetation Management Association Annual Meeting. Jackson, MS: MVMA.

Carter, C., Madsen, J. D., Turnage, G., & Ervin, G. N. (2013). Experimental Assessment of Butomus Umbellatus Growth along a Depth Gradient. Society of Wetland Scientists South Central Chapter annual conference. Mississippi State University.

Turnage, G., & Madsen, J. D. (2013). Phenology of Curlyleaf Pondweed (Potamogeton Crispus) in the Southeastern US: A Mesocosm Study. Tunica, MS. [Abstract]

Wersal, R. M., Madsen, J. D., & Turnage, G. (2013). Evaluating the Sensitivity of Hydrilla and America Lotus to Different Copper Formulations Applied Alone and in Combination with Diquat. Tunica, MS. [Abstract]

Madsen, J. D. (2013). Developing a Management Approach for a New Invasive Plant, Flowering Rush (Butomus Umbellatus L.). Invasive Weed Seminar. Davis, CA: Plant and Environmental Sciences Department, University of California-Davis.

Madsen, J. D. (2013). Flowering Rush in Detroit Lakes: From Research to an Operational Management Program. Lake Detroiters Association 2013 Annual Meeting. Detroit Lakes, MN: Lake Detroiters Association. [Abstract]

Madsen, J. D. (2013). Eurasian Watermilfoil Management Strategies. Cultus and Nicola Lakes Water Quality and Eurasian Watermilfoil Workshop. Abbottsford, British Columbia, Canada: Fraser Basin Council.

Madsen, J. D. (2013). Understanding Eurasian Watermilfoil. Cultus and Nicola Lakes Water Quality and Eurasian Watermilfoil Workshop. Abbottsford, British Columbia, Canada: Fraser Basin Council.

Ervin, G. N., & Madsen, J. D. (2012). IPAMS Research Data: Investigating Responses of Invasive Plants to Landscape Features in the Mid-South. USGS Invasive Species Interest Group teleconference.

Madsen, J. D. (2012). The Future of Surveysand Detection of Invasive Aquatic Plants and Various Other Topics... Aquatic Invasive Plants – Approaches to Management in Ontario. Peterborough, Ontario, Canada: Ontario Ministry of Natural Resources.

Madsen, J. D. (2012). Does Monoecious Hydrilla Pose a Unique Threat to Glacial Lakes: Let Me Count the Ways. Symposium on the Biology and Management of Monoecious Hydrilla. Syracuse, NY: US Army Corps of Engineers Buffalo District and Engineer Research and Development Center.

Madsen, J. D. (2012). Advantages and Disadvantages of Aquatic Plant Management Techniques. The Interface between Aquatic Herbicide Use and Salmonids: A Focus on Critical Habitat in the Pacific Northwest Region. Seattle, WA: US Army Corps of Engineers, Water Operations Technical Support Program.

Madsen, J. D. (2012). Aquatic Plant Distribution Assessment within the Littoral Zone of the Ross Barnett Reservoir, MS in 2011: A Seven Year Evaluation. Pearl River Valley Water Supply District Board of Directors Meeting. Jackson, MS: Pearl River Valley Water Supply District.

Wersal, R. M., & Madsen, J. D. (2012). Aquatic Plants: Uses and Risks. 7th Session of the Commission on Phytosanitary Measures. Viale delle Terme di Caracalla, Rome, Italy: The International Plant Protection Convention, Food and Agricutlure Organization, United Nations.

Madsen, J. D. (2012). Why Control Aquatic Invasive Species? 2012 Minnesota Aquatic Invasive Species Symposium: The Latest in Research and Policy. St. Paul, MN: Minnesota Association of Watershed Districts.

Madsen, J. D. (2012). Advantages and Disadvantages of Plant Control Methods. 2012 Minnesota Aquatic Invasive Species Symposium: The Latest in Research and Policy. St. Paul, MN: Minnesota Association of Watershed Districts.

Madsen, J. D., Maddox, V. L., Ervin, G. N., & Wersal, R. M. (2012). EDRR and the Invasive Plant Atlas of the MidSouth Project. Society for Range Management Symposium. Spokane, WA.

Madsen, J. D. (2011). Non-chemical Control of Aquatic Plants and Developing a Management Plan. Invasive Aquatic Weed Symposium. Stoneville, MS: Mississippi Exotic Pest Plant Council.

Madsen, J. D. (2011). Identification of Common Aquatic Plants and Weed Problems in the MidSouth. Aquatic Plant Management Applicator Workshop,. Guntersville, AL: MidSouth Aquatic Plant Management Society Annual Meeting.

Madsen, J. D. (2011). The Ecology of Aquatic Plants and Its Implications for Lake Management. USACE Workshop: Control of Invasive Aquatic Plants using Herbicides in Flowing Water Systems in the Northwest. Spokane, WA: US Army Corps of Engineers.

Madsen, J. D. (2011). Understanding Eurasian Watermilfoil. USACE Workshop: Control of Invasive Aquatic Plants using Herbicides in Flowing Water Systems in the Northwest. Spokane, WA: US Army Corps of Engineers.

Madsen, J. D. (2011). Invasive Species Research and Extension at GRI. Mississippi - Texas Invasive Species Work Group. Mississippi State University: Geosystems Research Institute.

Madsen, J. D. (2011). Strengths and Weaknesses of Aquatic Plant Management Techniques. Aquatic Plant Management Forum. Guntersville, AL.

Madsen, J. D. (2011). Economic and Environmental Impacts of Invasive Aquatic Plants. Aquatic Plant Management Forum. Guntersville, AL.

Madsen, J. D. (2011). Non-chemical Control Practices for Invasive Plants. Current Topics Seminar. Mississippi State University: Department of Plant and Soil Science.

Madsen, J. D., Cox, M. C., & Wersal, R. M. (2011). Aquatic Plant Distribution Assessment within the Littoral Zone of the Ross Barnett Reservoir, MS in 2010: A Six Year Evaluation. Board of Directors Meeting. Jackson, MS: Pearl River Valley Water Supply District.

Madsen, J. D. (2010). The Invasive Plant Atlas of the MidSouth Project. Greater Noxubee Wildlife Management Cooperative Meeting. Noxubee National Wildlife Refuge, MS. [Document]

Madsen, J. D. (2010). Aquatic Plant Assessment of the Ross Barnett Reservoir in 2009: A Five Year Evaluation. Board of Directors Meeting, Pearl River Water Supply District. Jackson, MS. [Document]

Madsen, J. D. (2010). Invasive Species Programs at the Geosystems Research Institute. Mississippi State University: Geosystems Research Institute Seminar Series.

Madsen, J. D., & Ervin, G. N. (2010). An Update on the Invasive Plant Atlas of the MidSouth Project. Invasive Species Working Group Teleconference. National Biological Information Infrastructure: Invasive Species Information Node. [Abstract]

Madsen, J. D. (2010). Council for Agricultural Science and Technology. Current Topics. Mississippi State University: Plant and Soil Science Department.

Madsen, J. D. (2010). Considerations of the Use of Herbicides to Control the Emergent and Submersed Phases of Flowering Rush. Flowering Rush Workshop. St Paul, MN: Minnesota Department of Natural Resources.

Madsen, J. D. (2010). Developing GIS-Based Invasive Species Programs: From Red-Necks to Remote Sensing, Terabyte Servers, and Parallel Computing. National Biological Information Infrastructure, Biogeospatial Working Group Seminar. U.S. Geological Survey, Reston, VA.

Madsen, J. D., & Maddox, V. L. (2009). Invasive Plant Atlas of the MidSouth Volunteer Training Workshop. University of Southern Mississippi Gulf Coast, Biloxi, MS.

Madsen, J. D., & Maddox, V. L. (2009). Invasive Plant Atlas of the MidSouth Volunteer Training Workshop. Mississippi Vegetation Management Association. Lake Tiak O’Khata, MS.

Madsen, J. D. (2009). How the CWMA Can Develop an Aquatic Plant Program. Mississippi Cooperative Weed Management Area Annual Meeting. Louisville, MS..

Madsen, J. D., Brown, R. L., Ervin, G. N., Maddox, V. L., & Abbott, C. F. (2009). Update on the GRI Cactus Moth Detection Network. Invasive Species Working Group. Teleconference: National Biological Information Infrastructure, Invasive Species Information Node. [Abstract]

Madsen, J. D. (2009). Evaluating Environmental Impacts of Aquatic Plant Management Techniques: Examining Direct and Indirect Effects. Aquatic Vegetation Control; Balancing Habitat and Nuisance. Elkhart, IN: St. Joseph River Basin Commission and Aquatic Ecosystem Restoration Foundation.

Madsen, J. D., Wersal, R. M., & Tagert, M. L. (2009). Survey of the Ross Barnett Reservoir (MS) for Invasive Species Management. Pearl River Valley Water Supply District Board of Directors Meeting. Jackson, MS.

Wersal, R. M., & Madsen, J. D. (2009). GIS in Aquatic Plant Management. Applications of Spatial Technology in Wildlife and Fisheries Management (WF 4253/6253), Mississippi State University.

Madsen, J. D. (2009). Aquatic Weed Control in the Mid-South. Weed Science Current Topics, PSS 8711, Mississippi State University, Invited Speaker.

Madsen, J. D. (2008). Aquatic Weed Control in the Mid-South. Mississippi Vegetation Management Association, Louisville, MS. November 13, 2008.

Abbott, C. F., Maddox, V. L., Ervin, G. N., & Madsen, J. D. (2008). Invasive Plant Atlas of the MidSouth (IPAMS). 35th Natural Areas Conference/National Association of Exotic Pest Plant Councils. Nashville, TN.

Maddox, V. L., Madsen, J. D., Abbott, C. F., & Ervin, G. N. (2008). The Invasive Plant Atlas of the MidSouth. 35th Natural Areas Conference/National Association of Exotic Pest Plant Councils - Poster Presentation. Nashville, TN.

Madsen, J. D. (2008). Understanding Eurasian Watermilfoil. Eurasian Watermilfoil Training Seminar, Idaho State Department of Agriculture (18-19 June 2008). Twins Falls, ID.

Abbott, C. F., Maddox, V. L., Ervin, G. N., & Madsen, J. D. (2008). The Invasive Plant Atlas of the MidSouth. Southeast Exotic Pest Plant Council Conference. Biloxi, MS. [Document]

Madsen, J. D., Wersal, R. M., & Tagert, M. L. (2008). Aquatic Plant Survey within the Littoral Zone of the Ross Barnett Reservoir for 2007. Pearl River Valley Water Supply District Board Meeting.

Prince Czarnecki, J. M., Shaw, D. R., Harvill, J. L., Byrd, J. D., Holly, D. C., Ervin, G. N., Grado, S. C., & Madsen, J. D. (2008). GIS-based Modeling for Prediction of Invasive Weeds. Weed Science Society of America Abstracts. Chicago, IL.

Robles, W., & Madsen, J. D. (2008). Detection of Herbicide Injury on Waterhyacinth (Eichhornia Crassipes) Using Landsat 5 TM Simulated Data. Weed Science Society of America 48th Annual Meeting. Chicago, IL.

Wersal, R. M., & Madsen, J. D. (2008). Using Point Intercept Surveys to Assess and Monitor Aquatic Macrophyte Communities. Weed Sciences Society of America 48th Annual Meeting. Chicago, IL.

Madsen, J. D., & Ervin, G. N. (2008). Integrating Effects of Land Use Change on Invasive Plant Species Distribution into an Invasive Plant Atlas for the Mid-south (IPAMS). NBII Invasive Species Working Group (April 28, 2008).

Madsen, J. D. (2007). Welcome and Cactus Moth Detection Network Overview. Cactus Moth Detection and Monitoring Network Meeting, GeoResources Institute (December 7, 2007). Starkville, MS.

Cheshier, J., & Madsen, J. D. (2007). Duckweed (Lemna Minor L.) Management for Delta Wings. Delta Wings Farms Board Meeting.

Madsen, J. D. (2007). Survey of Pat Harrison Waterways District Lakes. Presentation to the Board of Directors, Pat Harrison Waterways District (26 July 2007). Hattiesburg, MS.

Madsen, J. D. (2007). Pend Oreille Lake Eurasian Watermilfoil Survey for 2007. Pend Oreille Lake Milfoil Task Force Meeting (7 June 2007). Sandpoint, ID.

Madsen, J. D. (2007). Pend Oreille Lake Eurasian Watermilfoil Survey for 2007. Public Meeting, Bonner County (13 June 2007). Sandpoint, ID.

Madsen, J. D., Ervin, G. N., Maddox, V. L., Byrd, J., Westbrooks, R., & Mehrhoff, L. J. (2007). Integrating Effects of Land Use Change on Invasive Plant Species Distribution into an Invasive Plant Atlas for the Mid-South (IPAMS). MS Exotic Pest Plant Council.

Madsen, J. D. (2007). Nonchemical Methods for Control of Eurasian Watermilfoil and Curlyleaf Pondweed. Tahoe Aquatic Invasive Species Stakeholder Workshop, University of California Cooperative Extension Service (May 3, 2007). Incline Village, NV.

Madsen, J. D. (2007). Nonchemical Methods for Control of Eurasian Watermilfoil and Curlyleaf Pondweed. Tahoe Aquatic Invasive Species Technical Workshop, University of California Cooperative Extension Service (May 2, 2007). Incline Village, NV.

Madsen, J. D., Wersal, R. M., & Tagert, M. L. (2007). Aquatic Plant Survey within the Littoral Zone of the Ross Barnett Reservoir for 2006. Pearl River Valley Water Supply District Board Meeting (April 19, 2007). Jackson, MS.

Madsen, J. D. (2007). Cactus Moth Detection and Monitoring Network on Public and Private Lands in the United States. A Partnership between USDA-APHIS, USGS, and Mississippi State University. Invasive Species Working Group, NBII (April 26, 2007).

Madsen, J. D. (2007). Reproductive Ecology of Submersed Aquatic Vegetation and Its Application to Submersed Aquatic Vegetation Restoration. SAV Reproductive Ecology Workshop, Chesapeake Bay Program Science and Technical Advisory Committee (6-7 March 2007). Annapolis, MD.

Madsen, J. D. (2007). Reproductive Ecoogy of SAV and Its Application to SAV Restoration. SAV Reproductive Ecology Workshop, Maryland Department of Natural Resources (March 6-7, 2007). Annapolis, MD.

Madsen, J. D. (2007). Changes in the Littoral Aquatic Plant Community of Onondaga Lake from 1991 to 2006. Onondaga Lake Habitat Working Group, Parsons Engineering (12 February 2007) SUNY-ESF. Syracuse, NY.

Madsen, J. D. (2006). Changes in the Littoral Aquatic Plant Community of Onondaga Lake from 1991 to 2006. Onondaga Lake Scientific Forum. Syracuse, NY.

Madsen, J. D. (2006). Benthic Barrier. California Aquatic Weed School, UC-Davis.

Madsen, J. D. (2006). Growth and Reproduction of Aquatic Plants. California Aquatic Weed School, UC-Davis.

Madsen, J. D. (2006). Aquatic Weed Control Update. Mississippi Vegetation Management Association Annual Meeting. Starkville, MS.

Madsen, J. D. (2006). Ecologically-based Invasive Aquatic Plant Management: Using Life History Analysis to Manage Aquatic Weeds. University of California-Davis Plant Sciences Departmental Seminar.

Wersal, R. M., Maddox, V. L., & Madsen, J. D. (2006). Invasive Aquatic Plants: Should We Care. Identification and Management of Invasive Terrestial and Aquatic Plants Common to Coastal Mississippi Workshop. Gautier, MS.

Madsen, J. D., & Wersal, R. M. (2006). Invasive Aquatic Plant Research. Mississippi Exotic Pest Plants Council.

Madsen, J. D. (2006). Biology and Management of Eurasian Watermilfoil. ID County Weed Coordinator Meeting. Weiser, ID.

Madsen, J. D., & Wersal, R. M. (2006). Limitation of Giant Salvinia (Salvinia Molesta Mitchell) by Nutrients and PH. 14th International Conference of Aquatic Invasive Species.

Madsen, J. D. (2006). Biology of Eurasian Watermilfoil. Eurasian watermilfoil symposium, US Fish and Wildlife Service Office. Lakewood, CO.

Madsen, J. D. (2006). Advantages and Disadvantages of Aquatic Plant Control Methods. Eurasian watermilfoil symposium, US Fish and Wildlife Service Office. Lakewood, CO.

Majure, L. C., Ervin, G. N., Madsen, J. D., Westbrooks, R., Simpson, A., & Sellers, E. (2006). Assessing Habitat Requirements for Host Plants (Opuntia Spp.) of Cactoblastis Cactorum Berg. in the Southeastern United States. Graduate Student Research Symposium, MSU.

Majure, L. C., Ervin, G. N., Madsen, J. D., Westbrooks, R., Simpson, A., & Sellers, E. (2006). Assessing Habitat Requirements for Host Plants (Opuntia Spp.) of Cactoblastis Cactorum Berg. in the Southeastern United States. Southeastern Ecology and Evolution Conference, University of Alabama, Tuscaloosa.

Madsen, J. D. (2006). The Ten Most Unwanted Invasive Aquatic Plants of the Southeast. 15th Annual NALMS Southeastern Lake and Watershed Management Conference. Columbus, GA.

Madsen, J. D., & Wersal, R. M. (2006). Regulation of Giant Salvinia (Salvinia Molesta Mitchell) Growth by PH and Available Nutrients. Weed Science Society of America 46th Annual Meeting. New York, NY.

Majure, L. C., Ervin, G. N., Madsen, J. D., Westbrooks, R., Simpson, A., & Sellers, E. (2006). Assessing Habitat Requirements for Host Plants (Opuntia Spp.) of Cactoblastis Cactorum in the Southeastern United States. Ecological Society of America International Meeting. Merida, Mexico.

Madsen, J. D., Ervin, G. N., Westbrooks, R., Floyd, J. P., Simpson, A., & Sellers, E. (2006). The National Cactus Moth Detection Network and Database. Ecological Society of America International Meeting. Merida, Yucatan, Mexico.

Madsen, J. D. (2005). Integrated Management of Wetland Plants. Guest Lecture, Biol 4990 (G. Ervin), Mississippi State University, Mississippi State, MS.

Madsen, J. D. (2005). Exotic Species: Ecological Community Transformers. Special Lecture to Applied Aquatic and Terrestrial Ecology, WF3133 (Dr. Eric Dibble), Mississippi State University, Mississippi State, MS.

Madsen, J. D., & Abbott, C. F. (2005). A Web-based Database for the National Cactus Moth Detection Network. National Biological Information Infrastructure All-Node Meeting. Albuquerque, NM.

Madsen, J. D. (2005). Mississippi State University and the Invasive Species Information Node Partnership. National Biological Information Infrastructure All-Node Meeting. Albuquerque, NM.

Madsen, J. D. (2005). Management of Eurasian Watermilfoil (Myriophyllum Spicatum L.) in the Fall River, CA. Shasta-Trinity Cooperative Extension and Shasta County Department of Agriculture. Redding, CA.

Madsen, J. D. (2005). Aquatic Weed Control. NATURECHEM herbicide workshop. Dickson, TN.

Madsen, J. D. (2005). Selective Control of Eurasian Watermilfoil. University of California-Davis Weed Science Program Seminar Series.

Madsen, J. D. (2005). Mississippi State University?s Invasive Species Program: Relation to ISFS/NIISS. NASA/USGS Invasive Species Forecasting System Team Meeting. Fort Collins, CO.

Madsen, J. D. (2005). Non-Chemical Aquatic Plant Management Techniques. Fanwort Management Meeting, Ontario Ministry of Natural Resources, Peterborough. Ontario, Canada.

Madsen, J. D. (2005). Agency Coordination in Invasive Species Management. NOAA Site Visit, Mississippi State University.

Madsen, J. D. (2005). The MSU GeoResources Institute Cactus Moth Project. MSU Cactus Modeling Meeting. Tunica, MS.

Madsen, J. D., Byrd, J., Shaw, D. R., & Westbrooks, R. (2005). Developing a State Invasive Species Alliance for Mississippi. Weed Science Society of America 45th Annual Meeting. Honolulu, HI.

Madsen, J. D. (2005). Point-Intercept Vegetation Survey Method - An Overview. Minnesota Department of Natural Resources Aquatic Plant Meeting. Fort Snelling, MN.

Madsen, J. D. (2005). Life History of Curly-Leaf and Effects on Native Plants. Minnesota Department of Natural Resources Invasive Aquatic Plant Management Meeting. Bloomington, MN.

Madsen, J. D. (2005). Effects on Native Plants and Lake Condition of Not Treating Eurasian Watermilfoil. Minnesota Department of Natural Resources Invasive Aquatic Plant Management Meeting. Bloomington, MN.

Madsen, J. D. (2004). Invasive Species Issues in Mississippi. Mississippi Turf Association. Philadelphia, MS.

Madsen, J. D. (2004). Aquatic Weed Management. Tennessee Vegetation Management Association. Paris Landing, TN.

Madsen, J. D. (2004). Aquatic Weed Update. Mississippi Vegetation Management Association Annual Meeting. Meridian, MS.

Madsen, J. D. (2004). Flowing Water Systems. Aquatic Weed School, University of California Extension Service, University of California-Davis.

Madsen, J. D. (2004). Small Ponds and Aquascapes. Aquatic Weed School, University of California Extension Service, University of California-Davis.

Madsen, J. D. (2004). Technology and Resources for Opuntia Population Mapping. USDA APHIS Cactus Moth Project Meeting. Riverdale, MD.

Madsen, J. D., & Woolf, T. E. (2004). Phenology and Carbohydrate Allocation of Curlyleaf Pondweed in Minnesota. Weed Science Society of America 44th Annual Meeting. Kansas City, MO.

Madsen, J. D. (2004). The MSU GeoResources Institute Cactus Moth Project. Cactus Moth, Cactoblastis cactorum, Detection Meeting. Pensacola, FL.

Madsen, J. D. (2003). Aquatic and Wetland Pest Plants of Mississippi. Mississippi Exotic Pest Plant Council, Fall 2003 Meeting. Vicksburg, MS.

Madsen, J. D. (2003). Aquatic Weed Update. Mississippi Vegetation Management Association Annual Meeting. Tunica, MS.

Madsen, J. D. (2003). An Ecological View of Managing Nonnative Aquatic Plants. Biology Department Seminar Series, Mississippi State University, Mississippi State, MS.

Awards and Recognitions
Madsen, J. D. (2013). T. Wayne Miller, Jr., Distinguished Service Award. Aquatic Plant Management Society 53rd Annual Meeting. San Antonio, TX: Aquatic Plant Management Society.

Madsen, J. D. (2011). Presidential Award. Guntersville, AL: MidSouth Aquatic Plant Management Society.

Cox, M. C., & Madsen, J. D. (2009). Distribution and Management of Invasive Aquatic Plants in the Ross Barnett Reservoir. Mid-South Aquatic Plant Management Society Annual Meeting. Guntersville, AL. [Document]

Madsen, J. D. (2007). Associate Editor, Invasive Plant Science and Management, Weed Science Society of America. Weed Science Society of America.

Madsen, J. D. (2007). Research Professor of the Year. GeoResources Institute, Mississippi State University.

Madsen, J. D., & Abbott, C. F. (2005). Poster Award - A Web-based Database for the National Cactus Moth Detection Network. NBII All-Nodes Meeting.

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