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关于大庆温室蔬菜根结线虫的分布与危害、寄生种类及症状、根结线虫种的鉴定,作者曾作过研究,本文则阐述生物防治。 1.生物防治的基本原理 土壤中的某些菌,对根结线虫的卵、幼虫、成虫有侵染力,卵、幼虫、成虫因被寄生而死亡。将某些寄生力强的菌,从根结线虫的卵、幼虫、成虫体内分离出,经培养繁殖再回至土壤中捕捉线虫、寄生卵、成虫,减少土壤中的线虫数量,达到防治根结线虫病的目的。 如淡紫拟青霉菌(Paecilcieomyeoces eieacinus)属寄生性线虫真菌,菌丝伸入卵内,长
About Daqing greenhouse vegetable root-knot nematode distribution and damage, parasitic species and symptoms, identification of root-knot nematode species, the author has made a study, this article is about biological control. 1. The basic principles of biological control Certain bacteria in the soil, root knot nematode eggs, larvae, adults have infectivity, eggs, larvae, adults died as parasites. Some of the strong parasitic bacteria, root knot nematode eggs, larvae, adults isolated from the body, after breeding and then returned to the soil to catch nematodes, parasitic eggs, adults, reduce the number of soil nematodes, to control the root knot The purpose of nematode disease. Such as Paecilomyces eeacinus Paecilomyces is a parasitic nematode fungus, mycelium into the egg, long