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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.

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Educational programs of the Texas AgriLife Extension Service are open to all people without regard to race, color, sex, disability, religion, age, or national origin.

Publication Revised July 2009