Herbicide Resistance in Hydrilla Verticillata and Other Aquatic Plants
PowerPoint presentation on aquatic plant harvesting on Casey Lake in Minnesota (pictures included).
Author: Lori K. Benoit, Ph.D.
From the Weed Science Society of America:
“Herbicide resistance is the inherited ability of a plant to survive and reproduce following exposure to a dose of herbicide normally lethal to the wild type.”
“Herbicide resistance is the inherited ability of a plant to survive and reproduce following exposure to a dose of herbicide normally lethal to the wild type.”
Key Points
- Mostly terrestrial
- Associated with agriculture
- Wetland species associated with rice fields
- Very few aquatics in lakes
Key Points
- A duckweed (Landoltia punctata) from Lake County, FL is resistant to diquat.
- Hydrilla (Hydrilla verticillata) in multiple locations throughout Florida. Resistant to Sonar (fluridone).
- Hybrid milfoil (Myriophyllum spicatum x sibiricum) in midwest lakes may have some resistance to fluridone.
To see the whole PowerPoint presentation, please download the PDF file.
