保护利用寄生线虫防治农作物害虫,已经引起了国内外的重视。1976年我们在教学实习中发现大量稻飞虱被线虫寄生,寄生率高达93％。五年来我们对这种索线虫的形态征、生活习性、控制效能、环境因素对其影响和保护利用等方面进行了调查和研究,现特将结果报告如下。 Protection of parasitic nematodes to prevent crop pests has attracted great attention at home and abroad. In 1976, we found that a large number of rice planthoppers were parasitized by nematodes in teaching practice, with a parasitic rate of 93%. In the past five years, we conducted a survey and research on the morphological characteristics, living habits, control efficacy, environmental impact and protection of such nematodes. The results are reported as follows.