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柠檬树在秋冬季无论是枝叶还是果实,都很容易感染疮痂病,在枝叶和果实上出现油渍状黄褐色木栓化圆锥形的病斑,致使叶片扭曲翻卷并黄化脱落,果实不能充分膨大,果肉干瘦,失去食用价值。防治方法在秋冬季节,注意检查柠檬树的枝叶和果实,发现枝叶和果实上有凹凸不平的油渍状黄褐色病斑出现时,就要叶面喷洒2~3次1000倍80%代森锌水溶液,或1000倍80%多菌灵水溶液,或800倍70%甲基硫菌灵水溶液,或1000倍80%百菌清水溶液,或600倍20%噻菌铜
Lemon trees in autumn and winter, whether branches or fruits, are susceptible to scab disease, appear in the branches and leaves of the oil-like yellow brown cork conical lesions, causing the leaves twist curl and yellow shedding, the fruit can not fully expand , Thin skin, loss of food value. Prevention and control methods In the fall and winter seasons, pay attention to check the branches and leaves of lemon trees and fruits, found that branches and leaves on the fruit uneven kale-like spots appear, it is necessary to spray the foliage 2 to 3 times 1000 times 80% , Or 1000 times 80% carbendazim solution, or 800 times 70% thiophanate-methyl water solution, or 1000 times 80% chlorothalonil solution, or 600 times 20% thiabendazole