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Evaluation of Triclopyr and Mycoleptodiscus terrestris for Control of Eurasian Watermilfoil (Myriophyllum spicatum)

Published online by Cambridge University Press:  20 January 2017

Linda S. Nelson  and
Judy F. Shearer
Linda S. Nelson*
Affiliation:
Environmental Laboratory, U.S. Army Engineer Research and Development Center, 3909 Halls Ferry Road, Vicksburg, MS 39180
Judy F. Shearer
Affiliation:
Environmental Laboratory, U.S. Army Engineer Research and Development Center, 3909 Halls Ferry Road, Vicksburg, MS 39180
*
Corresponding author's E-mail: [email protected]
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Abstract

Growth chamber studies were conducted using 55-L aquariums to evaluate the efficacy of the herbicide triclopyr and the fungal pathogen Mycoleptodiscus terrestris, applied alone and in combination against Eurasian watermilfoil. Treatments included 0.15, 0.40, and 1.50 mg acid equivalent (ae)/L triclopyr, 0.08, 0.16, and 0.32 ml/L M. terrestris, combinations of both agents at all rates, and an untreated control. Plants were exposed to all treatments for a 24-h contact time and plant biomass (shoot and roots) was recorded 6 wk after application. For both triclopyr and M. terrestris applied alone, plant control increased with treatment concentration. Compared with untreated plants, 1.50 mg/L triclopyr and 0.32 ml/L M. terrestris reduced Eurasian watermilfoil by 100 and 91%, respectively. Lower doses of herbicide or pathogen were less effective and plant recovery was observed from surviving plant tissues (stems and root crowns). Although M. terrestris at 0.08 ml/L did not significantly reduce shoot or root biomass and 0.15 mg/L triclopyr provided only 53% control of plants, combining both agents at these rates reduced Eurasian watermilfoil by 90%. Results demonstrated that integrating low doses of triclopyr with an indigenous pathogen, M. terrestris, can improve control of Eurasian watermilfoil. Lower use rates of triclopyr would minimize impacts to sensitive nontarget vegetation, reduce application costs, and may minimize impacts of label-imposed use restrictions.

Keywords

TriclopyrEurasian watermilfoil, Myriophyllum spicatum L. MYPSPMycoleptodiscus terrestris (Gerd.) OstazeskiAquatic plant managementfungal pathogenintegrated weed managementinvasive species
Type
Research
Information
Invasive Plant Science and Management , Volume 1 , Issue 4 , October 2008 , pp. 337 - 342
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Bartodziej, W. and Ludlow, J. 1997. Aquatic vegetation monitoring by natural resource agencies in the United States. J. Lake and Resour. Manage 13/2:109–117.Google Scholar
Beckie, H. J. 2006. Herbicide-resistant weeds: management tactics and practices. Weed Technol 20:793–814.CrossRefGoogle Scholar
Buhler, D. D., Liebman, M., and Obrycki, J. J. 2000. Theoretical and practical challenges to an IPM approach to weed management. Weed Sci 48:274–280.CrossRefGoogle Scholar
Carroll, R. B., Whittington, D. P., and Jones, E. R. 1991. Crown and root rot of bird's-foot trefoil in Delaware caused by Mycoleptodiscus terrestris . Plant Dis 75/10:1074.Google Scholar
Colby, S. R. 1967. Calculating synergistic and antagonistic responses of herbicide combinations. Weeds 15:20–22.Google Scholar
Eiswerth, M. E., Donaldson, S. G., and Johnson, W. S. 2000. Potential environmental impacts and economic damages of Eurasian watermilfoil (Myriophyllum spicatum) in western Nevada and northeastern California. Weed Technol 14:511–518.CrossRefGoogle Scholar
Getsinger, K. D., Turner, E. G., Madsen, J. D., and Netherland, M. D. 1997. Restoring native vegetation in a Eurasian water milfoil-dominated plant community using the herbicide triclopyr. Regul. Rivers: Res. Manage 13:357–375.Google Scholar
Glomski, L. M. and Nelson, L. S. 2008. Evaluation of 2,4-D ester and triclopyr against waterlily and spatterdock. APCRP Technical Note. ERDC/TN APCRP-CC-07. Vicksburg, MS U.S. Army Engineer Research and Development Center. 6 p.Google Scholar
Habeck, D. H. 1974. Caterpillars of Parapoynx in relation to aquatic plants in Florida. J. Aquat. Plant Manage 12:15–18.Google Scholar
Hoagland, R. E. 1996. Chemical interactions with bioherbicides to improve efficacy. Weed Technol 10:651–674.Google Scholar
James, W. E. and Barko, J. W. 1990. Macrophyte influences on the zonation of sediment accretion and composition in a north-temperate reservoir. Arch. Hydrobiol 120:129–142.CrossRefGoogle Scholar
Joye, G. F. 1990. Biocontrol of hydrilla with the endemic fungus Macrophomina phaseolina . Plant Dis 74:1035–1036.Google Scholar
Joye, G. F. and Paul, R. N. 1992. Histology of infection of Hydrilla verticillata by Macrophomina phaseolina . Weed Sci 40:288–295.Google Scholar
Léger, C., Hallett, S. G., and Watson, A. K. 2001. Performance of Colletotrichum dematium for the control of fireweed (Epilobium angustifolium) improved with formulation. Weed Technol 15:437–446.Google Scholar
Lévesque, C. A. and Rahe, J. E. 1992. Herbicide interactions with fungal root pathogens, with special reference to glyphosate. Annu. Rev. Phytopathol 30:579–602.Google Scholar
Madsen, J. D. 2005. Eurasian watermilfoil invasions and management across the United States. Current 21/2:21–26.Google Scholar
Madsen, J. D., Sutherland, J. W., Bloomfield, J. A., Eichler, L. W., and Boylen, C. W. 1991. The decline of native vegetation under dense Eurasian watermilfoil canopies. J. Aquat. Plant Manage 29:94–99.Google Scholar
Mullin, B. H., Anderson, L. W. J., DiTomaso, J. M., Eplee, R. E., and Getsinger, K. D. 2000. Invasive plant species. Ames, IA Council for Agricultural Science and Technology (CAST), Issue Paper No. 13. 18 p.Google Scholar
Nelson, L. S., Shearer, J. F., and Netherland, M. D. 1998. Mesocosm evaluation of integrated fluridone-fungal pathogen treatments on four submersed plants. J. Aquat. Plant Manage 36:73–77.Google Scholar
Nelson, L. S. and Shearer, J. F. 2005. 2,4-D and Mycoleptodiscus terrestris for control of Eurasian watermilfoil. J. Aquat. Plant Manage 43:29–34.Google Scholar
Netherland, M. D. and Getsinger, K. D. 1992. Efficacy of triclopyr on Eurasian watermilfoil: concentration and exposure time effects. J. Aquat. Plant Manage 30:1–5.Google Scholar
Netherland, M. D. and Shearer, J. F. 1996. Integrated use of fluridone and a fungal pathogen for control of hydrilla. J. Aquat. Plant Manage 34:4–8.Google Scholar
Pedlow, C. L., Dibble, E. D., and Getsinger, K. D. 2006. Littoral habitat heterogeneity and shifts in plant composition relative to a fall whole-lake fluridone application in Perch Lake, Michigan. J. Aquat. Plant Manage 44:26–31.Google Scholar
Petty, D. G., Getsinger, K. D., and Woodburn, K. B. 2003. A review of the aquatic environmental fate of triclopyr and its major metabolites. J. Aquat. Plant Manage 41:69–75.Google Scholar
Ross, M. A. and Lembi, C. A. 1985. Applied Weed Science. New York Macmillan Publishing. 340 p.Google Scholar
Sharon, A., Amsellem, Z., and Gressel, J. 1992. Glyphosate suppression of an elicited defense response. Plant Physiol 98:654–659.CrossRefGoogle ScholarPubMed
Shearer, J. F. 1993. Biocontrol of hydrilla and milfoil using plant pathogens. Pages 79–81. in. Proceedings of the 27th Annual Meeting of the Aquatic Plant Control Research Program. Misc. Paper A-93-2. Vicksburg, MS U. S. Army Engineer Waterways Experiment Station.Google Scholar
Shearer, J. F. 1996. Potential of a Pathogen, Mycoleptodiscus terrestris, as a Biocontrol Agent for the Management of Myriophyllum spicatum in Lake Guntersville Reservoir. Technical Report A-96-4. Vicksburg, MS U.S. Army Corps of Engineers, Waterways Experiment Station. 28 p.Google Scholar
Shearer, J. F. 2001. Recovery of Endophytic Fungi from Myriophyllum spicatum. APCRP Technical Note, TN APCRP-BC-03. Vicksburg, MS U.S. Army Engineer Research and Developments Center. 11 p.Google Scholar
Shearer, J. F. and Jackson, M. A. 2006. Liquid culturing of microsclerotia of Mycoleptodiscus terrestris, a potential biological control agent for the management of hydrilla. Biol. Control 38:298–306.Google Scholar
Shearer, J. F., Jackson, M. A., and inventors, . 2003. Mycoherbicidal compositions and methods of preparing and using the same. U.S. Patent 6,569,807.Google Scholar
Shearer, J. F. and Nelson, L. S. 2002. Integrated use of endothall and a fungal pathogen for management of the submersed aquatic macrophyte Hydrilla verticillata . Weed Technol 16:224–230.Google Scholar
Smart, R. M. and Barko, J. W. 1984. Culture Methodology for Experimental Investigations Involving Rooted Submersed Aquatic Plants. Miscellaneous Paper A-84-6. Vicksburg, MS U.S. Army Corps of Engineers, Waterways Experiment Station. 20 p.Google Scholar
Smart, R. M. and Doyle, R. 1995. Ecological Theory and the Management of Submersed Aquatic Plant Communities. Aquatic Plant Control Research Program Bulletin A-95-3. Vicksburg, MS U.S. Army Engineer Waterways Experiment Station. 7 p.Google Scholar
Smart, R. M., Getsinger, K. D., Dick, G. O., and Skogerboe, J. G. 1995. Preliminary report on species-selective control of Eurasian watermilfoil with triclopyr. Pages 73–76. in Proceedings, 29th Annual Meeting, Aquatic Plant Control Research Program. Misc. Paper A-95-3. Vicksburg, MS U.S. Army Engineer Waterways Experiment Station.Google Scholar
Smith, C. S. and Barko, J. W. 1990. Ecology of Eurasian watermilfoil. J. Aquat. Plant Manage 28:55–64.Google Scholar
Smith, D. A. and Hallett, S. G. 2006. Interactions between chemical herbicides and the candidate bioherbicide Microsphaeropsis amaranthi . Weed Sci 54:532–537.Google Scholar
Smith, R. R., Grau, C. R., and Gray, L. E. 1998. First report of Mycoleptodiscus terrestris infecting forage legumes and soybeans in Wisconsin. Plant Dis 82/1:126.Google Scholar
Snedecor, W. G. and Cochran, W. G. 1980. Statistical Methods. 7th ed. Ames, IA The Iowa State Press. 507 p.Google Scholar
Sorsa, K. K., Nordheim, E. V., and Andrews, J. H. 1988. Integrated control of Eurasian watermilfoil, Myriophyllum spicatum, by a fungal pathogen and a herbicide. J. Aquat. Plant Manage 26:12–17.Google Scholar
Sprecher, S. L. and Stewart, A. B. 1995. Triclopyr effects on peroxidase activity in target and non-target aquatic plants. J. Aquat. Plant Manage 33:43–48.Google Scholar
Vencill, W. K., editor. 2002. Herbicide Handbook. 8th ed. Lawrence, KS Weed Science Society of America. 434–436.Google Scholar
Verma, U. and Charudattan, R. 1993. Host range of Mycoleptodiscus terrestris, a microbial herbicide candidate for Eurasian watermilfoil, Myriophyllum spicatum . Biol. Control 3:271–280.CrossRefGoogle Scholar
Wesley, M. T. and Shaw, D. R. 1992. Interactions of diphenylether herbicides with chlorimuron and imazaquin. Weed Technol 6:345–351.Google Scholar
Wymore, L. A., Watson, A. K., and Gotlieb, A. R. 1987. Interactions between Colletotrichum coccodes and thidiazuron for control of velvetleaf (Abutilon theophrasti). Weed Sci 35:377–383.Google Scholar