Zucchini Fruit Rots

Question

The fruit grows about 1 to 2 inches then rots. The plant looks healthy.

Answer 1

It sounds like a pollination problem. These articles will help:
https://www.gardeningknowhow.com/garden-how-to/beneficial/insect-pollination-process.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-fruit-falling-off-the-plant.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm

You could also be having a problem with blossom end rot. This article will help if you are seeing any of this as well: https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm