Description:Â Anthracnose is a disease caused by a fungus which is most severe in cucumbers, muskmelons and watermelons. Anthracnose survives in plant debris and seeds. Infected leaves and fruit develop spores that spread easily by splashing water or contact with hands/tools. Anthracnose favors warm, moist conditions.
Damage: Infected leaves exhibit irregularly shaped brown spots that may have a hole in the center. Stems may become elongated and sunken when infected.
Control:Â Begin with resistant varieties and clean seed from a reputable distributor. Do not collect seed from infected plants. Practice crop rotation allowing three years between crops from the squash family. Use mulch and drip irrigation to prevent soil and water from splashing on the plants. Infected plants should be destroyed, not composted. Sanitize tools between use if they contact diseased plants.
Contact your local Extension office for other control recommendations.
