Leaf Scorch
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关于这种疾病
A physiological disorder in which leaf tissue is damaged by intense sunlight, direct sun, or hot dry winds, resulting in pale brown patches or marginal scorch. Affected tissue does not recover.
主要症状
- Pale to tan dry patches may appear on leaves, sometimes with a papery texture
- Leaf margins and tips may turn brown and dry out
- Newly emerging or partially unfurled leaves tend to be more susceptible
- Scorched areas do not regain green color and remain permanently discolored
主要原因
- Sudden exposure to intense direct sunlight when moving a plant from indoors to outdoors
- Strong direct sunlight or reflected glare through south- or west-facing windows
- Combined stress of high temperatures and hot dry winds in summer
- Elevated leaf surface temperature resulting from water deficit combined with high heat
预防（栽培环境与日常管理）
Gradually acclimatize plants to brighter environments and avoid sudden changes in placement. During summer, use shade cloth or filtered light through curtains to block intense direct sunlight.
相关图鉴
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Specialist nurseries and growers can advise on appropriate light levels for specific plant species, gradual acclimatization procedures when moving plants outdoors, and the use of shade cloth.
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