Which aquatic weed species has been documented to have herbicide-resistant populations in Florida?

Dotted duckweed has been documented to have herbicide-resistant populations in Florida, highlighting its ability to adapt to chemical control methods. This resistance poses challenges for effective management of the species, which can proliferate rapidly in aquatic systems, leading to significant impacts on water quality and ecosystem health. Understanding the dynamics of herbicide resistance in dotted duckweed is crucial for developing sustainable management strategies.

In contrast, while water hyacinth, water lettuce, and cattail are commonly problematic aquatic weeds, they have not been reported to have resistance to herbicides to the same extent as dotted duckweed in Florida. This information is vital for pest control practitioners as it emphasizes the need for adaptive management practices when dealing with resistant species and highlights the importance of monitoring herbicide efficacy in controlling these aquatic weeds.