WEEDTRINE-D - 1 galWEEDTRINE D is a broad spectrum liquid aquatic herbicide for use in and around still lakes, ponds, lagoons, ditches, non crop or non planted areas controlling a broad range of filamentous algae and submerged and floating aquatic weeds. Containing 8. 53% active diquat dibromide, Weedtrine D acts as a potent contact killer in plants by disrupting cellular membranes allowing Weedtrine D to enter plants "short circuit" the plants ability to convert light