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How to Manage Pests

UC Pest Management Guidelines

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Sunscald symptoms on a bean leaf.

Dry Beans

Sunscald

(Reviewed 8/07, updated 8/07)

In this Guideline:

SYMPTOMS

Sunscald symptoms first appear as small water-soaked spots on upper surfaces of leaves, stems, or pods that are exposed to the sun. These spots are generally close together, turn reddish brown, and form large spots on affected plant parts.

COMMENTS

This condition is caused by exposure to intense sunlight and/or high temperatures. The problem tends to be most severe following periods of high humidity and overcast skies.

MANAGEMENT

None available.

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Dry Beans
UC ANR Publication 3446
Abiotic Disorders
R. M. Davis, Plant Pathology, UC Davis
C. A. Frate, UC Cooperative Extension, Tulare County
Acknowledgment for contributions to Abiotic Disorders:
A. E. Hall, Botany and Plant Sciences, UC Riverside
Acknowledgment for contributions to Diseases/Abiotic Disorders:
S. R. Temple, Plant Sciences, UC Davis

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