I'm with Jon and Bill apply compost tea all you want in the heat. We are getting great results this summer considering many days this summer over 100. My county is rated abnormally dry by the drought monitor as well. My bermuda lawns look outstanding, fescue lawns under irrigation look good considering the conditions. Cool season lawns around town with no irrigation are completely dormant and have been for over a month.
Bill I'm going to take your advice on the kelp and work that into the next application.