Worries about Pennsylvania facing a severe drought seem to have faded with recent rainstorms, but the question of how to care for your lawn during this summer's heat is still important. When it comes to maintaining your lawn, according to an expert in Penn State's College of Agricultural Sciences, doing less really may be doing more. "Most years, you don't need to water if your lawn is in decent shape going into the summer season," said Peter Landschoot, professor of turfgrass management. "The spring recipe for lawn care is to fertilize, mow up to twice a week and treat for weeds. But homeowners should back off on all those practices during the summer."