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稻虱线虫属于线虫纲,索总科,索科(M-ermithidae),寄生于稻飞虱、叶蝉成虫和若虫体内,我县早在1968年就已发现。它分布很广,常见于低洼水田中,尤其在用药水平低的地区寄生率很高,是一种控制褐稻虱的优势种。为了探讨线虫的利用途径,从1977年起,对稻虱线虫的生活习性、寄主种类及其分布作了比较系统的调查,并进行了室内饲养。现将结果整理如下。生活习性稻虱线虫体形细长,雌虫长28～41mm,雄虫21～30mm。虫体乳白色,有较厚的角皮,头部钝圆,尾部略尖,每年发生一代。
Nematode nematode belongs to Nematoda, Suo Zongke, M-ermithidae, parasitic in planthoppers, leafhoppers adults and nymphs, my county as early as 1968 has been found. It is widely distributed, common in low-lying paddy fields, especially in areas with low levels of parasitic parasites, is a dominant species of brown planthopper control. In order to explore the use of nematodes, from 1977 onwards, life habits of host lice, host species and their distribution made a more systematic investigation, and conducted indoor rearing. The results are now organized as follows. Livelihood pest lice shape slender, female 28 ~ 41mm long, male 21 ~ 30mm. Insect milky white, thick keratin, blunt rounded head slightly pointed tail, a generation occurs each year.