We have a pretty large lawn and in the past few years we have had fungus and or bug damage that has left numerous spots bare of grass. I know going forward that fungicide and bug/grub control; products will be a mandatory application every year. My question is if there is a tool that can scarify the bad areas so that i can drop seed into the bad areas without making a giant mess of everything. I have a ratchet rake and was thinking about using that. Or maybe use a slice seeder.. Which would be quite a bit more work. The area is about 2/3 acre