柠檬流胶病是柠檬产区的主要病害。发病部位主要在植株的主干,病部腐烂流胶,影响树势;严重时造成“环割树皮”,致使植株死亡,严重影响生产。据我所1961——1963年研究指出:此病在田间全年均有发生,以六至十月发病最多,其中以高温多雨季节发病最为严重,而在冬春发病甚少。果园长期积水,土壤粘重,树冠郁闭等对加速 Lemongrass is the main disease in lemon producing areas. The main part of the disease is the trunk of the plant. The diseased part is rotting and gumming, which affects the tree vigor. In severe cases, it causes the “circumcision bark”, causing the death of the plant and seriously affecting the production. According to my research from 1961 to 1963, it was found that the disease occurred all year round in the field with the highest incidence in June to October, of which the incidence was the most serious in the hot and rainy seasons, and very few in winter and spring. Long-term water orchards, soil sticky weight, crown canopy, etc. to speed up