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1984—1985年,从上海市郊8个县85块棉田调查样品中检得植物寄生线虫13个属(种)。普通肾形线虫(Rotylenchulus reniformis)和根腐线虫(Pratylenchus spp.)是根部固着寄生和内寄生线虫的主要种。矮化线虫(Tylenchorhynchus spp.)和螺旋线虫(Helicotylenchus spp.)是土壤中外寄生线虫优势种群。6月初和9月中旬田间线虫群体密度分别出现一个高峰。垫刃目(Tylenchida)、滑刃目(Aphelenchida)、矛线目(Dorylaimida)和杆形目(Rhabditido)的数量分別在土壤线虫群体中占29.2—46.0％、9.3—19.4％、4.0—15.1％和23.7—49.3％.
From 1984 to 1985, 13 genera of plant parasitic nematodes were screened from 85 cotton field samples in 8 counties of Shanghai suburbs. Rotylenchulus reniformis and Pratylenchus spp. Are the dominant species root-fixing parasitic and endoparasitic nematodes. Tylenchorhynchus spp. And Helicotylenchus spp. Are dominant populations of parasitic nematodes in the soil. At the beginning of June and the middle of September, the population density of field nematodes appeared a peak respectively. Tylenchida, Aphelenchida, Dorylaimida and Rhabditido accounted for 29.2-46.0%, 9.3-19.4%, 4.0-15.1% of the soil nematode populations respectively, And 23.7-49.3%.