Alternaria Leaf Blight (Spot) of Cucurbits
Alternaria cucumerina
Cucurbitsfungal
A fungal disease causing concentric-ringed brown leaf spots starting on older leaves.
Symptoms
Concentric-ringed brown spots on older leaves first, leading to defoliation in severe cases.
Favorable conditions
- •Warm, humid weather
- •Plant stress and nutrient deficiency
Management
- 1Rotate fungicides
- 2Rotate crops
- 3Remove infected debris after harvest
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