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Fluridone

Type: Herbicide

Mode of Action: Inhibiting carotenoid biosynthesis in plants

Common Product Names: Sonar 

What is it?

Fluridone is a systemic herbicide primarily used in aquatic environments to control submerged and emergent vegetation. It is a selective herbicide that targets a wide range of weed species while being safe for fish and other aquatic organisms when used as directed. Fluridone is available in various formulations, including liquid and pellet forms, making it adaptable to different application needs. Fluridone is effective as a post-emergent herbicide, meaning it works on weeds that are already established. Visible effects can be seen within 7-10 days, but complete control might take several weeks, depending on the weed species and environmental conditions. Provides long-lasting control, often managing weed populations for several months.

How does it work?

Fluridone interferes with the plant's ability to produce carotenoids, which are essential for protecting chlorophyll from degradation by sunlight. As a result, the plants gradually lose their green color and die off due to the inability to photosynthesize. The mode of action is slow-acting, which is beneficial for preventing rapid oxygen depletion in aquatic systems, a common issue with fast-acting herbicides.

Benefits

  • Long-term Control: Fluridone offers extended control of aquatic weeds, often for a full growing season.
  • Selective Action: It targets unwanted vegetation while being safe for desirable aquatic plants and organisms.
  • Systemic Herbicide: As a systemic herbicide, it moves throughout the plant, ensuring thorough control.
  • Slow-acting: Provides a gradual reduction in weed biomass, preventing sudden oxygen depletion in water bodies.
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