ElPolloDiablo said:You mentioned growing these zucchini plants in pots. If so it's most likely a water issue, perhaps not enough drainage or having the bottom third of the potting compound dripping wet while the rest is bone dry.
Also remember that if your plants have been in production for 30 days or so now, leaves will start to die out as the stem lenghtens and production of new flowers move down to it. There are actually some zucchini cultivars that require being staked during growth like indeterminate tomatoes.
Thank you so much! I have harvested 4 zucchinis from it already. Do you think it's too late for me to transplant them into the ground? I was going to keep it in a pot as my garden is pretty full, but I can pull up some ground cover plants and put it in the ground. But I don't know if it's too late in the season or if it's bad to put a potentially sick plant in the ground... Thank you for your help.