I cross-posted this in the veggie forum, but maybe someone here can help as well. I have 2 SFG rows of English peas that are just loaded with powdery mildew. Since it's about to get too hot, I'm going to pull them anyway. I was going to put cantalope there instead--do I need to do something to the plants or the soil to prevent future PM? I see my okra also has little red spots--do they need to be treated, replaced, or can I just ignore it? My peas put out plenty and haven't lost a lot of leaves, just looks bad.