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Position: Home > Articles > A PRELIMINARY STUDY ON THE CONTROL OF HOLCOCERUS INSULARIS BY STEINERNEMA FELT1AE Forest Research 1990 (2) 190-194

芜菁夜蛾线虫对小木蠹蛾致死率的研究

作  者:
高瑞桐;秦锡祥
单  位:
中国林业科学研究院林业研究所
关键词:
芜菁夜蛾线虫;小木蠹蛾
摘  要:
小木蠹蛾(Holcocerus insularis Stgr.)是果树和园林树木的重要害虫,危害山楂、银杏、白蜡、国槐、龙爪槐、法桐和丁香等树种。据各地调查被害率,北京门头沟区的山楂达60%,市区行道树白蜡为30%~80%;石家庄市10多年生国槐为26%~96%;鞍山市1万株山楂全部被害,严重影响了产量和行道树的生长。自1986年以来,我们应用昆虫病原线虫Steiner-nema feltiae A11进行了防治试验,效果很好。1987年进一步在室内外研究了芜菁夜蛾线虫(S.feltiae Agtriotos)对小木蠹蛾的幼虫致死率,以及有关影响线虫毒力的因素。
译  名:
A PRELIMINARY STUDY ON THE CONTROL OF HOLCOCERUS INSULARIS BY STEINERNEMA FELT1AE
作  者:
Gao Ruitong Qin Xixiang(The Research Institute of Foreslry CAF)
关键词:
Steinernema feltiae Agtriotos; Holcocerus insularis Stgr.
摘  要:
The paper deals with the effect of using Steinernema feltiae Agtriotos to control Holcocerus insular is Stgr. .The results showed that control effects were influenced by temperature, dosage, and instar of larva. At 25℃, the host could be killed by it within 3 days, at 35℃, the nematode was effective. At 10℃, the host mortality was 25% within 10 days. When a 1-year-old host was parasitized by 6.8 or 21.6 nematodes, the mortality was 70% or 90% respectively, when a 2-year-old host was parasitized by 27.2 or 86.2 nematodes, 70% or 90% respectively.

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