It does not matter if it's been dry. Pythium is not a normal fungus and classified as a parasitic oomycotes. A whole different beast is in the soil. That's your problem. Those spots are dead is why they are not coming back. The roots are gone. Yard looks like grease spots everywhere? The yellow that is the color of highlighter will soon be dead if treated with an insecticide. I've probably treated 20 yards already just like this, this season. Your not gonna have chinch bugs destroying yards when soil temps have not even reached 75 degrees consistently in SC. That much damage already you would have to be blind not seeing bugs when looking.
Last edited by Jcl4slc; 05-09-2014 at 08:56 AM.