AWRI Thum

Liz LaRue

Are Eurasian Watermilfoil Hybrids Less Susceptible to Herbicides than the Eurasian Watermilfoil?

Invasive species and our efforts to control them impose major disturbances to ecosystems, and the development of information-based management tools that minimize both the effects of invasive species and human disturbances from control efforts is essential for the sustainable preservation of earth’s ecosystem.The Eurasian watermilfoil is an ecologically devastating invader that is extensively managed with herbicides, but reductions in herbicide efficacy are increasingly reported by lake managers, particularly in the Eurasian x northern watermilfoil hybrid. In my Master’s Thesis, I am using a combination of field studies, laboratory herbicide efficacy screens and genetic analysis to compare levels of herbicide response in different genetic lineages of the invasive Eurasian watermilfoil and Eurasian x northern watermilfoil hybrid.

Page last modified March 6, 2011