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Gray Mold or Botrytis Fruit Rot of Strawberry

By: Frank Louws, Bill Cline, Caleb Bollenbacher

Gray Mold or Botrytis Rot is a serious fungal disease in all strawberry production areas and is the primary disease of concern in most years. The fungus can infect fruit, leaves, crown, petals, flower stalks, and fruit caps and is most severe during cool bloom and harvest seasons with lengthy periods of clouds and rain. Best management practices include clean plants, cultural practices, sanitation, fungicidal control, timely harvest and post-harvest cooling.