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柠檬营养丰富,除鲜食外主要是香料、医药及食品工业的原料。四川是我国柠檬的主要产区,占全国总产量的90%左右。据在内江、成都、遂宁、乐山、重庆等7地市调查,柠檬树发病率轻者30%,平均60%左右。有的地区高达90%,死树率4%。严重地威胁着柠檬的生产和发展。流胶病主要为害柠檬的主干,其次是主枝,无论幼苗或成年果树都可受害。此外柑桔树也可被害。病原菌复杂,有菌核病菌(Sclerotinia sp.)、树脂病菌(Phomopsis
Nutrient rich lemon, except fresh food is mainly spices, medicine and food industry raw materials. Sichuan is the main producing area of lemon in China, accounting for about 90% of the total output of the country. According to surveys in Neijiang, Chengdu, Suining, Leshan and Chongqing, the incidence rate of lemon trees was 30%, with an average of 60%. In some areas up to 90%, the dead tree rate of 4%. Serious threat to the lemon production and development. Myrosinosis is mainly responsible for the trunk of lemon, followed by the main branch, whether seedlings or adult fruit trees can suffer. In addition citrus trees can also be killed. Complicated pathogens, Sclerotinia sp., Phomopsis