稻虱是使水稻孕穗末期至灌浆乳熟阶段损失最严重的主要害虫。稻虱寄生性天敌和扑食性天敌的种类很多,稻虱线虫A gamer-mis unka Kaburaki.et lmamra.仅是稻虱寄生性天敌的一种。现据1979年害虫灭敌资源调查资料初步整理报导如下。 一、形态特征与寄生习性 线虫形状似蛔虫,但体细长似棉线一般大小,蠕虫状呈圆筒形。据饲养观察,线虫从稻虱自动爬出所得的成熟线虫(体黄白 Rodents are the major pests that cause the most serious loss from the late booting stage of rice to the milky stage of filling. There are many kinds of parasitic natural enemies and the predatory natural enemies of the planthopper, which is only one of the parasitic natural enemies of the planthopper. According to the preliminary survey on the pest, insect and enemy resources survey conducted in 1979, the report is as follows. First, the morphological characteristics and parasitism Nematode worms shaped like roundworms, but slender like a cotton-like general size, worm-shaped cylindrical. According to the feeding observation, the nematode climbed out of the resulting mature nematode (body yellow and white) automatically