A couple of my zucchini plants that, while they have some healthy zucchinis, are also showing some very small zucchinis that are shriveling up, turning yellow and dying before they can get large enough to pick. It has been very hot and dry here in NW Indiana all summer, but I have faithfully watered about a 1/2 hour a day. Could the heat be the problem? My friend said it was some kind of beetle disease, could this be it?
Your help is most appreciated.