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   Heat Injuries
 more...>Disease Image Gallery>Non-Pathogenic>Heat Injuries>

Sun Scald

Sun scald is a non-pathogenic disease found on a number of plants, including ornamentals, vegetables and fruits. This type of damage occurs when plants are exposed to too much direct sunlight. The injuries are more severe on stressed, weakened or recently transplanted plants.

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Rhododendron sun scald. Note the discoloration of the leaf tissue near the midrib. This injury is non-pathogenic and is primarily an aesthetic problem in the landscape.

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Sun scald on fatsia. This plant can tolerate some filtered light but not full sun exposure. Prolonged exposure to direct sunlight may result in sun scald, or even plant death. Additionally, saprophytic fungi may develop in sun-scalded areas.




Image courtesy of Clemson University - USDA Cooperative Extension.
Sun scald on tomato causes necrotic areas on the fruit exposed to the sun. The injury is usually found near the stem end. Image courtesy of Clemson University - USDA Cooperative Extension.

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Sun scald damage on peppers results in a white, light brown lesion on the fruit. The side of the fruit exposed to the sun is usually soft, sunken and wrinkled. This creates a good environment for the entry of secondary rot organisms, which can then cause fruit decay.


Related Files
FilenameDescriptionFile Size
Tomato+Disorders+-+Sunscald.pdf Tomato Disorders - Sunscald 125.11 KB
Pepper+Disorders+-+Sunscald.pdf Pepper Disorders - Sunscald 147.09 KB
Last Updated: 2/16/2012 2:06:03 PM

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