Problem with Pumpkin Plants
It's been very hot here the last week (approx 100 degrees daily), and humid. The last couple of days my pumpkin plant has been looking rough, and many leaves are yellowing, and those are wilted with brown edges. What could be going on?
I don't see any frass near the stem and I don't see any powerdy stuff, but it appears to be also impacting one of it's neighbors - a zucchini plant. I cut off all of the yellow and disposed of it, but do I have to get rid of the plant? Could my spray (its a sulfur based spray) be hurting it instead of preventing diseases?