LwnmwrMan2205-24-2007, 08:51 PMYa maybe so but over the years weve found it to help just because their is a 8 week residual and we like to keep the levels up pretty good through july and august just because not all of the deeper seeds germinate till then . oh and I made a mistake use DRIVE for your post emergence works really well just try not to spray too much grass cause it does tend to stress t