Applied Biochemists Weedtrine D Aquatic Herbicide 1 Gal

Weedtrine® D Aquatic Herbicide controls submersed, floating and emergent weeds including duckweed. Ideal for a broad range of weeds commonly found in ponds.
Quickly dilutes in water
Easy-spray application
Non-volatile herbicide
A surfactant is necessary when using this product with any weed on or above the water surface