Cucumber Yellow Spot Disease in Florida: Angular Leaf Spot & Anthracnose

Fungal Diagnosis

Yellow→brown spots killing plants in humid FL = angular leaf spot (bacterial) or anthracnose (fungal). Overhead watering spreads both.

Management

• Drip irrigation only—eliminate wet leaves.
• Resistant varieties: 'Marketmore 76', 'Diva', 'Straight Eight'.
• 3-year rotation—avoid soil buildup.
• Copper fungicide early (preventative).

Seed Sources

Park Seed, Burpee, Johnny's—filter for disease resistance codes.