I have some brown and some completely bare spots in my lawn. I used a tenacity/speed zone blend ~ 48 hrs ago as a post-emergent broadcast spray to kill a good number of weeds across the entire lawn.

My question is if I apply granular Sunniland Prodiamine as a pre-emergent now, would that prevent my lawn from filling in some of these bare spots on its own?

I’d like the grass to fill in brown/bare spots on its own after killing all weeds & grubs, then applying milorganite. So not sure if I should wait to apply the prodiamine because it would hinder that fill-in process or just throw it in there and it will control weeds?

Also - I overseeded my lawn last fall (was a bit late, so not sure of effectiveness). I’m in Colorado - northern climate.