Sunscald is a plant injury caused by low temperatures, typically occurring in winter when the bark of a tree is exposed to direct sun and warms up. This decreases the ability to withstand low temperatures and is later injured by frost. Sunscald causes an elongated area of sunken or dead bark or damage to fruit.
Sunscald symptoms will appear as yellow or white lesions on foliage and/or fruits. The lesions eventually may turn brown and/or shrivel. Foliage that is commonly affected includes impatiens, hosta, rhododendron, garden beans, peas, peppers and tomatoes.
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