Target Leaf Spot

Corynespora cassiicola

Symptoms:
A severe leaf spot most common on cucumbers. Small yellow spots on leaf lamina develop into necrotic areas that eventually fall out leaving the leaf with a "shot-hole" appearance. Severe cases result in defoliation. Infected fruit are darkened and shriveled.

Control:
In tropical and subtropical areas where this disease occurs, good greenhouse sanitation is critical. A preventitave fungicide spray program is required. Plant resistant or tolerant varieties where possible.

---