Also found in: Encyclopedia, Wikipedia.


or sun scald  (sŭn′skôld′)
Localized injury or death of plant tissues, especially fruit or bark, caused by exposure to intense sunlight in the summer or to rapid temperature fluctuations in the winter.


localized damage to plants or trees, caused either by excessive sun or alternation between sunshine and cold weather



injury to woody plants from the combined effects of heat, humidity, and intense light.
Mentioned in ?
References in periodicals archive ?
Inspect recently planted trees for frost cracks or sunscald.
That is, they are protected from drying winds, extreme changes in temperature and sunscald.
This helps shade ripening tomatoes and can prevent sunscald.
Trees can be damaged by sunscald and frost cracks, where abrupt transitions from sun-soaked warmth to cold, or the reverse, can crack or kill sections of bark and open pathways for insects, fungi and other harmful invaders.
A dry soil may cause premature leaf drop on gooseberries causing the fruit to sunscald due to lack of shading.
Burhans prefaces his lively account of the chip's invention (dated to 1853 in Saratoga Springs, NY) with a consideration of the never-guaranteed perfect potato; ring rot, sunscald, vascular browning, late blight, and tuber rot are among "can't use" conditions.
Sunscald is a special type of temperature-related injury.
We tested the hypothesis that light-coloured bark minimizes the thawing and freezing of cambium tissue during winter that could contribute to sunscald injury.
A magnesium deficiency could show up as leaf drop, poor production, or sunscald of the fruit, so you might want to add dolomite lime, talc or Epsom salts.