My squash fruits get about 3-4″ long, then shrivel up and die. What is the problem?
This is a pollination problem. A small squash always subtends a female bloom. It will begin to develop and may reach the size you have described, 3-4′, without being pollinated. If it is pollinated, it will continue to develop. Pollination of cucurbits requires bees. Bees may not be present or they may be killed by some insecticides. Hand pollination of the female bloom can be done when bees are absent.