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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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