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PP280/PP280: Management of Gummy Stem Blight (Black Rot) on Cucurbits in Florida

July 17, 2015

Source: PP280/PP280: Management of Gummy Stem Blight (Black Rot) on Cucurbits in Florida

Gummy stem blight (GSB) is a major disease of many cucurbits, including watermelon, cantaloupe, cucumber, pumpkin, squash, muskmelon, and other melons. The fungus Didymella bryoniae is the causal organism for this disease. Infection on watermelon and cantaloupe is commonly seen in Florida, and the disease can cause significant production losses when conditions are ideal for the spread of this fungal pathogen