OK, IM BAFFLED. just cut this clients lawn wednesday. looked awesome, picture perfect. get a call this evening, he has brown spots. i go over tonight. sure enough, in only 5 days, the lawn goes from beautiful to potential hell in a couple more days. brown spots, big ones. not circles, but odd shaped perhaps 1 ft wide by 3 ft long. and others 1 ft by 6 inches.the grass here is thin, laying down, brown, and dead. does not pull out real easy, but easy enough, and the roots stay in the ground. ive treated with merit in june, and talstar in july. i know its not any type of insect. a fungus? if i apply bayleton will it stop from spreading?