Last fall I did a complete renovation on my yard. Killed everything with glyphosphate and slit seeded tall fescue blend. Fast forward to now: I have several areas that are very thin or bare. I overseeded my yard with finelawn tall fescue. Raked in Scott's top soil in the bare areas with seed. Where do I go from here. Questions? I know soil temps are still below 50, so.... 1) I plan on putting down Starter fertilizer with Siduron but when should I put it down? 2) Do I need to applications of siduron 30 days apart OR can I do one application and then a PRE-M 30 days later? 3) When and what should I use as a post emergant spray.... Thanks! I know what I decided to do is expensive, but I really wanted to try to get those thin areas fuller.