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Closer view of lesions on stems and pedicels. Buckeye Rot (Phytophthora spp., including P. capsici)
Buckeye rot caused by the pathogen Phytophthora spp. can become a major
problem in processing tomato production during periods of heavy rainfall
which lead to saturated soils. The pathogen can infect developing green
tomatoes which are sitting in free water or on saturated soils causing them
to rot. Infected tomatoes will develop concentric tan/brown lesions (see
picture).
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