Anybody spray throw and mow on the same day vs spraying and waiting for grass to die first.
I have done the opposite, mowed then sprayed immediately afterwards. The only down side is all of mowed grass forms a mulch over the mowed stalks and protects it from the spray. You will still get a decent kill, but not like if you had sprayed days before mowing, or waited days after mowing, to spray.I wouldn't think it would work very well to spray and mow on the same day. Unless sprayed early and mowed late. Would think it would need time for weed/grass to pull in chemicals before mowing. Don't see where there would be other negative effects.