RE: How long to wait after using RoundUp
If you are going to turn ove ( moldboard plow) the field you are wasting money to use roundup, you dont need to kill the vegetation you are going to trun it under, it will decompose in the soil, then you disc it anddprepare your seedbed. If you are going to no-till it then you can kill the vegetation and plant soon after . When I overseed a lawn I spray roundup then wait about 15 minute for it to dry, then slice in new seed, while the old vegetation is dying the new seed is germinating and starting its root system.