I have a tomoto plant in a pot and some of the smaller tomatos are starting to shrivel. I just noticed this yesterday and I am going to move the plant into the shade. what is causing that and how can I fix it?
the plant is in direct sunlight and gets watered at least once a day and some times twice if it gets really hot. I am in Californina and getting some pretty hot temps this past week.

Could be the heat. Can you post some pics?

Wow, they look bad. How big is your pot?

about 8"

Yikes, that is weird! But other fruit on the same plant is developing normally?
Two thoughts come to mind, *total conjecture*
1. They have "cooked" on the vine in excessively hot weather (yes, that can really happen), possibly during a window when they got slightly less water,

2. They are way over ripe. Should already have been harvested.

3. Both 1 and 2. That happened to me a couple of years ago. They didn't look quite like that, but they stayed yellow from sun scald so I thought they hadn't ripened, but actually were over ripe and turned to mush when I touched them.

Looking forward to seeing if you find the answer!

You need a much bigger pot that will retain much more moisture so your plants will get through the hot days. A bigger pot will also give your tomatoes more room to grow. Try to get a ~5 gallon pot. Be sure it has holes in the bottom.

Wait to transplant until things cool off a little or at least move the plant to a cooler spot and transplant in the evening. Pick off the withered fruit (and any damaged leaves) before transplanting.

Good luck!

I'll try that thanks