Posted 8/17/2015 06:22 (#4737226 - in reply to #4737185) Subject: RE: planting delay after spraying roundup
NW Central Ohio
...are you talking no-tilling it after spraying a burn down? Probably about 24 hours for annual weeds..I'd give it 2-3 days for perennials like quackgrass and thistle. You don't want to cut any of the roots that may be translocating the herbicide on a perennial.