Blackberry fruit turning brown

Question

In past years, my Chester Thornless Blackberries ripen from a red color to black, when they are ready to eat. This year they’re going from red color to a shriveled light brown. Probably 90% of the berries have this problem. Are they not getting enough water? And, how much should I be watering the vines?

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Answer 1

YOur plant has white druplet disorder. This article will help:
https://www.gardeningknowhow.com/edible/fruits/raspberry/white-drupelet-syndrome.htm

Answer 2

This article may help
https://www.gardeningknowhow.com/edible/fruits/blackberries/blackberries-not-fruiting.htm