I would spray about 10-14 days before sewing my seed and then mow it down over the top, preferably before a rain. Smaller seeds, like clover and brassica's work best, but wheat and cereal rye work very well. You don't have to spray, but if the vegetation is really thick, i would reccomend it so it will thin out some. The key is for the seed to reach the soil surface.

Last edited by blumsden; 07/20/16 08:26 AM.