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Nitrogen Fertilizer Affects the Severity of Anthracnose Crown Rot Disease of Greenhouse Grown Strawberries

B. J. Smith

June 2009


The influence of nitrogen, phosphorus, and potassium on the severity of anthracnose crown rot was evaluated in three greenhouse studies. Strawberry plants were fertilized three times weekly with a modified Hoagland’s Nutrient Solution containing the treatments and inoculated eight weeks after treatment applications began with a conidial suspension of the causal pathogen, Colletotrichum fragariae. Disease severity was rated 30 days later on a scale of 0 to 6.


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