Finally a calm wind day on the southern plains today so I sprayed some pre-emergent and herbicide on the place before lunch. Sprayed on the back side of the dam but there is very little chance of any drift as the bottom of the dam is about 15' lower than the rim. Also, was using a tank with booms that are maybe a foot off the ground.
However, my collie managed to get under the spray and then went and waded in my pond before I could stop it. Several hours later I observed a very ill adult BG gasping for air near the surface right where the collie was wading. The pond is about an acre and average depth of about 8'. I have BG, HSB, LMB, and RES. I've never seen any fish do that before so I'm doubting its a coincidence. I observed the pond and didn't see another sick fish at dusk.
How big of a mess have I made?
