Scab

Cladosporium cucumerinum

Symptoms:
Scab can affect cantaloupe, pumpkin and squash but it mainly infects cucumber. Foliar symptoms include water-soaked spots in early stages that progress into angular or circular necrotic lesions. An area of olive-gray fungal mat may be present in the lesions. Affected fruit have large sunken lesions with watersoaked margins, that later develop corky "scabs" and may ooze sap.

Control:
Planting resistant cucumber varieties and use of an effective fungicide program are important. Cleanliness is also important since the fungus may survive in crop litter.

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