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A watersoaked, sunken spot develops on the blossom ends (opposite the stem ends) of squash and watermelons. The spot enlarges and turns brown to black. Mold may grow on the spot.
ANALYSIS: Blossom-end rot
The first fruits of the season are the most severely affected. As the name implies, the disorder always starts at the blossom end, though the rot may enlarge to affect half of the fruit. Moldy growths on the rotted area are caused by fungi or bacteria that invade the damaged tissue.
Text and images adopted from theOrtho Problem Solver
Last Updated: Fri Sep 06 10:30:00PM CST 1996