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黄龙病又称黄梢病,在全国各地的柑橘均有分布。幼树发病可以在1~2年内死亡,老年树发病则在3~5年内枯死或是丧失结果能力。所以柑橘果农中流传着“后种先死”的说法,意思就是说幼树的发病比成年树要早,死亡要快。黄龙病的发病原因黄龙病的病原已确定为一种限于韧皮部的需复杂营养的细菌微生物,一般通过嫁接传染,传播病毒的媒介昆虫为柑橘木虱,它以持久性方式传递,病原在木虱体内的循环期为一个月左右。被公认为是柑橘生产上最具毁灭性的病害,为国际、国内检疫对象,
Huanglongbing, also known as yellow tip disease, citrus throughout the country are distributed. Sickle disease can die within 1 to 2 years, the incidence of aging tree is 3 to 5 years dead or loss of ability. Therefore, citrus growers in the spread of “after the first death ” argument, meaning that the incidence of young trees than adult trees earlier death faster. Pathogenesis of Huanglongbing The pathogen of Huanglongbing has been identified as a bacterial microorganism that requires complex nutrition limited to the phloem and is usually spread by grafting. The vector-borne insect that carries the virus is Citrus psyllid, which is transmitted persistently, The cycle of the body for a month or so. Is recognized as the most devastating disease in citrus production, for international and domestic quarantine objects,