I have a drive that go's around the house down a hill to the barn. The grass is taking over and the stone are disappearing. It must be keep free of grass due the snow in the winter. Snowy grass drive makes for no traction. I was checking on putting grass killer on the drive at the hardware. No where on the labels does it say anything about how long the chemical will stay on the grass. My chickens free range and dig through the gravel looking for something to eat I guess. Has anyone had an experience with such a situation? I could keep the chickens in the coop for a week or so till the grass killer works. John
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