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GRI Publications for Ryan M. Wersal, PhD
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.

Wersal, R. M., & Getsinger, K. D. (2009). Chapter 3: Impact of Invasive Aquatic Plants on Waterfowl Pp. 19-23. In: Biology and control of aquatic plants: A best management practices handbook. (Gettys, L.A., W.T. Haller, and M. Bellaud, eds.). Aquatic Ecosystem Restoration Foundation, Marietta, GA. 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]

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]

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]

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]

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]

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]

Peer-Reviewed Conference Abstracts
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., 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
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]

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.

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]

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]

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]

Non-Refereed Conference Abstracts
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., 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]

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]

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

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., & 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.

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., 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.

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]

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]

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., 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.

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.

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.

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.

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). 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.

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.

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.

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.

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.

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.

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.

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.

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., & 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.

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., 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.

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. (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., 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.

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.

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]

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., 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.

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., 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.

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.

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.

Wersal, R. M., & Tagert, M. L. (2006). Using Point Intercept Surveys To Map Aquatic Plants In The Ross Barnett Reservoir, Mississippi. Aquatic Plant Management Society 46th Annual Meeting.

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]

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.

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.

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

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.

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.

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.

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]

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]

Articles in Trade Journals and Popular Press
Wersal, R. M. (2008). Parrotfeather: An Overlooked Nuisance. Midsouth Aquatic Plant Management Society Newsletter. 26, 6.

Wersal, R. M. (2006). Aquatic Plant Community Composition of the Ross Barnett Reservoir. MidSouth Aquatic Plant Management Society. 24, 3. [Document]

In-House
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]

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]

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]

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]

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]

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., & 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]

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., 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]

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]

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]

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: Chinese Privet (Ligustrum sinese Lour.). 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., & Wersal, R. M. (2007). Invasive Species Fact Sheet: Spiny Cocklebur (Xanthium spinosum L.). Mississippi State University: GeoResources Institute.

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.

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.

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]

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]

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., 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]

Mudge, C. R., Wersal, R. M., & Nelson, L. S. (2011). Evaluation of Commercially Available Herbicide Mixes for Control of Rosette Stage Yellow Starthistle (Centaurea Solstitialis L.). APCRP Technical Notes Collection (ERDC/EL TN-11-3). Vicksburg, MS: U.S. Army Engineer Research and Development Center. [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
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]

Wersal, R. M. (2012). Alligatorweed Biology and Management. Invasive Plant Workshop. St. Louis, MO: Missouri Department of Conservation.

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., 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., 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.

Wersal, R. M. (2010). Aquatic Weed Control Research Update. Mississippi Vegetation Management Association Annual Meeting. Jackson, MS.

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. (2009). An Overview of Invasion Ecology. Lecture for Weed Biology and Ecology PSS 4633/6633.

Wersal, R. M. (2009). Plant Community Sampling Techniques. Lecture for Weed Biology and Ecology PSS 4633/6633.

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., 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.

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

Wersal, R. M. (2006). GIS In Aquatic Plant Management. National GIS Day, GeoResources Institute.

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). Limitation of Giant Salvinia (Salvinia Molesta Mitchell) by Nutrients and PH. 14th International Conference of Aquatic Invasive Species.

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.

Awards and Recognitions
Wersal, R. M. (2010). Outstanding Graduate Student Award. Aquatic Plant Management Society, 50th Annual Meeting. Bonita Springs, FL.

Wersal, R. M. (2010). 2010 Centers and Institutes Research Support Staff Award. Mississippi State University.

Wersal, R. M. (2008). Awarded 2Nd Place in the Student Paper Contest. 48th Annual Aquatic Plant Management Society Meeting, Charleston, SC.

Wersal, R. M. (2008). GeoResources Institute Research Associate of the Year (May 2 2008). Mississippi State University.

Wersal, R. M. (2008). Awarded 3Rd Place in the Student Paper Competition. Midwest Aquatic Plant Management Society 28th Annual Meeting, (March 1-3). Sanduskey, OH.

Wersal, R. M. (2007). Awarded 3Rd Place in the Student Paper Competition. 47th Annual Meeting of the Aquatic Plant Management Society.

Wersal, R. M. (2007). Awarded 1St Place in the Student Poster Competition. 47th Annual Meeting of the Aquatic Plant Management Society.

Wersal, R. M. (2007). Awarded 2Nd Place, Student Presentation Contest. 37th Annual Mississippi Water Resources Conference.

Wersal, R. M. (2006). Midsouth Aquatic Plant Management Society 2006 Scholarship. Midsouth Aquatic Plant Management Society. [Document]

Wersal, R. M. (2006). Scholarship Awarded by the Midwest Aquatic Plant Management Society. MSU. [Document]

Thesis and Dissertation
Wersal, R. M. (2010). The Conceptual Ecology and Management of Parrotfeather (Myriophyllum Aquaticum (Vell.) Verdc.). Starkville, MS: Mississippi State University. [Document]

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