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Phytophthora of Cucurbits

Figure 11. Fruit affected by Phytophthora fruit rot (blight) with typical white, yeast-like fungal growth. Symptoms usually start on the fruit bottom and progress around the fruit until it is covered with fungal growth and collapses. Phytophthora fruit rot could be confused with Pythium fruit rot (see Fig. 12) or white mold (see Fig. 13); however, growth of Phytophthora is never fluffy or cottony.

Photo courtesy of M.T. McGrath, Long Island Horticultural Research and Extension Center

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Link to the Factsheet on Phytophthora Blight of Cucurbits

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