Rosmel from Oklahoma City writes
Can you apply Weedmaster around water with a water wheel?
Weedmaster is not labeled for use in water or around water. This product is harmful to fish and other aquatic animals and should not be applied in the areas of water or in areas of high water tables. On windy days you shouldn’t apply within 250 feet downwind from any water source.
Answer last updated on: 12/04/2018