Don't even know if August oats planting will be affected. Once that worm gets started, it's hard to stop. I found the only way was to harvest the hay, letting the ground dry out on top. Don't even check the ground, look for birds on ground, my army worm indicator We had hundreds in one field. Oats planting in August is tough with this bug. Farmers here are saying to expect a 3rd wave sometime in late August. Afraid for the winter wheat, barley, and rye planting September.