Answer: A few things come to mind. Stink bugs and some white flies feeding on developing fruits can cause this uneven ripening to occur. Check for these pests early in the season once fruits have set and spray with pyrethrum to kill them. Potassium deficiency can lead to this problem as well. Though there's plenty of potassium in your soil, according to your soil test, perhaps uneven moisture in the soil has prevented the plants from absorbing enough of the nutrient. Mulch the plants well and keep them well watered to prevent moisture fluctuation. Check in your library for books with photos of stink bugs and white flies if you are unfamiliar with these.
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