First time home owner, trying to keep a decent looking lawn. It was starting to look pretty good but then we got some really hot weather and I think that started to ruin it. I've been trying to water more often and user fertilizer but I need to figure out how to fix the brown spots now. Around November, I applied the scotts winter fertilizer. I applied it again around December. It started looking pretty good once it started to warm up, but now it has brown patches. We bought a new mower as we were using an old one that wasn't doing a good job, I also started applying the scotts turf builder fertilizer . It looks OK where it's actually green.. What can I do about the green spots? Help!!