Angular Leaf Spot of Cucurbits
Pseudomonas syringae pv. lachrymans
Cucurbitsbacterial
A bacterial disease producing angular, vein-bounded leaf spots that later tear out, giving a "shot-hole" look.
Symptoms
Angular, water-soaked leaf spots bounded by veins that ooze bacteria and later dry and tear out, leaving a tattered, shot-hole appearance.
Favorable conditions
- •Contaminated seed
- •Overhead irrigation and rain splash
Management
- 1Use certified disease-free seed
- 2Apply copper sprays preventively
- 3Avoid overhead irrigation
- 4Rotate crops
Back to the disease library