How can I keep my yellow squash from rotting?

https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm

This website might help: https://pender.ces.ncsu.edu/2013/05/why-are-my-squash-rotting/

Hi Pam. It sounds like you may have blossom end rot. I would find a plant food that has a lot of calcium in it. This helps get rid of it. I use tomato-tone, and it works well. You can also find sprays to help. Here is a link with more info. I wish you luck!

https://pender.ces.ncsu.edu/2013/05/why-are-my-squash-rotting/

Louisiana has more shades of green than even Unicorn SPiT can make. To get that lush greenery you need lots of water, and La. has it: fog, dew, rain, floods, and high humidity. But that much moisture brings molds, mildew, rot, and other issues for garden plants. After your squash, watermelon, tomato, cucumber, and other bearers of heavy fruit/vegetables start growing, begin removing the bottom leaves. When the squash begins growing, start lifting the produce off the ground. Use pantyhose strips, tomato cages, wood or plastic upended pots and boxes, chicken wire, strong twine, etc. to tie up or hold up your fruit of the vine. And, obviously, try to have good drainage in your garden. With inches of rain in a few hours, sometimes you are gardening in mud. Put down dry mulch, hay, crushed charcoal—anything porous to help aaprotect the roots and stems of your plants. Very best wishes ☺️

If you use every suggestions we all have made, you may have prize-winning squash!