Q.Squash plants
We have approx. 14 hills of straight neck yellow squash planted. They are blooming now; however, a couple of the hills are already dying before we even pick any squash. There are no signs of squash bugs yet. What can we “doctor” them with that might help. Also, what do you recommend besides Sevin that might help other plants?

Here are some articles that will help you pinpoint the issue.
https://www.gardeningknowhow.com/edible/vegetables/squash/how-to-grow-summer-squash.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/why-squash-leaves-turn-yellow.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-pests-identifying-and-preventing-squash-vine-borer.htm