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柑桔线虫病是柑桔类果树的重要病害。据1983～1985年在四川不完全调查,抽样调查的19个县（市）均发现此病,重病园发病率达100％,产量明显下降。致病线虫在四川已发现10余种,其优势种为柑桔根线虫（桔垫刃线虫,Tylechulussemipenetrans cobb）。据田间系统观察,柑桔根线虫在四川江津一年发生不完整10代,约17～42天完成一代,世代重叠明显。土温18～24℃利于线虫生长发育;砂土和砂壤土,pH值5.6～8的果园,发病普遍且重;柑园间种茄科、豆科作物可加重此病的发生。砧木品种中,感抗差异较显著。据初步调查,土柑、柠檬、酸桔、甜橙等最感病,枳和夔柑较抗病。
Citrus nematode disease is an important disease of citrus fruit trees. According to the incomplete survey and sample survey of 19 counties (cities) in 1983 and 1985 in Shanxi Province, the disease was found. The incidence of seriously ill park reached 100%, and the output decreased obviously. Pathogenic nematodes in Sichuan have been found more than 10 species, the dominant species is citrus nematode (Tanger worm, Tylechulus semipenetrans cobb). According to field observations, citrus rootworm in Jiangjin, Sichuan, an incomplete 10 generation a year, about 17 to 42 days to complete a generation, generation overlap obvious. Soil temperature 18 ~ 24 ℃ conducive to the growth and development of nematodes; sand and sandy loam, pH 5.6 ~ 8 orchards, the incidence is common and heavy; citrus oryziaceae, leguminous crops may aggravate the occurrence of the disease. Rootstock varieties, the difference is more significant inductance. According to a preliminary investigation, citrus, lemon, sour orange, orange and other susceptible, citrus and citrus relative resistance.