Brad from Bostic Nc writes
Hi - Yield 2, 4 - D Selective Weed Killer can be toxic to fish is not used as directed. Treatment of aquatic weeds can result in oxygen loss from decomposition of dead weeds. This loss can cause fish suffocation. Therefore, to minimize this hazard, treat 1/3 to 1/2 of the water area in a single operation and wait at least 21 days between treatments. Begin treatments along the shore and proceed outwards in bands to allow fish to move into untreated areas.
Answer last updated on: 08/18/2022