Zucchini Unknown Growth Condition

Question

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?

Answer 1

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