When you spray that much herbicide and kill off a large qunatity of aquatic vegetation, the decaying plants take oxygen out of the water and kill fish. I pass over the basin at least once a week and have been watching the vegetation killing. They haven't followed the label instructions when spraying aquatic vegetation, but who am I to call them out. It is a gov't thing. All I know is that if I hadn't followed the label law when spraying the golf course I managed, I would have received a huge fine. Now I sell the chemicals and have to make application recommendations to my customers, in order to not kill all the aquatic life.
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