Zucchini Unknown Growth Condition
Immediately upon fruit setting they develop pimples, turn yellow and fall off. At the same time, young leaves become yellow and the plant does not look healthy. What could be the cause?
Certified GKH Gardening Expert
It sounds like a pollination issue. This article should help: https://www.gardeningknowhow.com/edible/vegetables/zucchini/zucchini-fruit-fall-off-the-plant-before-they-are-full-grown.htm