Are you growing your grass in trays and is humidity a problem?What type of seed are you using,spring,winter and have you tried barley?I have had great results with barley in the intense summer months.I was pleasantly supprised by its ability to tollerate the high heat and humid conditions.I belive the wide blades of grass makes for better air circulation.I hope spring comes quickly Im ready to start growing again!Its supposed to get down to 9 degrees tonight burr!!!!!Good luck and happy growing!