Anthracnose of Cucurbits

Colletotrichum orbiculare

Anthracnose is a common disease of foliage in the field. Symptoms typically develop on fruit when the foliar disease is severe and fruit remain in the field too long.  Smoother-skinned varieties of melon are more susceptible to anthracnose fruit rot (e.g., honeydew). Fruit symptoms include circular, sunken, water-soaked areas which expand to become quite large. Black specks may be seen in the center of the lesions.  Under humid conditions yellowish-pink spore masses may ooze from the lesions.

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