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阿维菌素和硫线磷对南方根结线虫的毒力
引用本文:邹雅新,曹素芳,马娟,张小风,张金林,陈书龙.阿维菌素和硫线磷对南方根结线虫的毒力[J].植物保护,2009,35(2):39-43.
作者姓名:邹雅新  曹素芳  马娟  张小风  张金林  陈书龙
作者单位:1. 河北农业大学植物保护学院,保定,071000;河北省农林科学院植物保护研究所/河北省农业有害生物综合防治工程技术研究中心,保定,071000
2. 河北省农林科学院植物保护研究所/河北省农业有害生物综合防治工程技术研究中心,保定,071000
3. 河北农业大学植物保护学院,保定,071000
基金项目:行业科研专项经费资助项目,国家科技支撑计划 
摘    要:利用阿维菌素和硫线磷处理南方根结线虫离体卵与幼虫,测试其对线虫卵和卵块孵化以及对2龄幼虫的致死作用、活动能力、侵入能力的影响。结果表明阿维菌素和硫线磷均对线虫卵和卵块的孵化表现很强的抑制作用,阿维菌素5 μg/mL处理24 h对卵孵化抑制率高达82.57%,而硫线磷40 μg/mL处理24 h对卵孵化抑制率为73.05%;阿维菌素和硫线磷处理48 h对2龄幼虫的LD50分别为7.346 1、13.345 6 μg/mL;在阿维菌素2 μg/mL和硫线磷3 μg/mL处理中,2龄幼虫在沙柱中的平均移动距离仅为0.04 cm和0.05 cm,而对照处理的线虫平均移动距离为1.04 cm;在阿维菌素2 μg/mL和硫线磷50 μg/mL处理2龄幼虫48 h后,对番茄根部的侵入率为0.12%和0.45%,而空白对照处理线虫的侵入率达21.85%。

关 键 词:南方根结线虫  阿维菌素  硫线磷  侵入  活动能力

Effects of abamectin and cadusafos on the southern root-knot nematode,Meloidogyne incognita
Zou Yaxin,Cao Sufang,Ma Juan,Zhang Xiaofeng,Zhang Jinlin,Chen Shulong.Effects of abamectin and cadusafos on the southern root-knot nematode,Meloidogyne incognita[J].Plant Protection,2009,35(2):39-43.
Authors:Zou Yaxin  Cao Sufang  Ma Juan  Zhang Xiaofeng  Zhang Jinlin  Chen Shulong
Institution:1. College of Plant Protection, Hebei Agricultural University, Baoding071001, China;2. Institute of Plant Protection, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province, Baoding071000, China
Abstract:The effects of abamectin and cadusafos on egg hatch, and the mortality, mobility and infectivity of the second stage juvenile (J2) of Meloidogyne incognita were tested in the laboratory. The results showed that both chemicals had strong inhibition activity to egg hatch either in egg masses or in individual eggs. The inhibition rate in the treatment by 5 μg/mL abamectin for 24 hours was 82.57%, while the rate in the treatment by 40 μg/mL cadusafos was 73.05%. The LD50 values of abamectin and cadusafos to J2 in 48 hours were 7.346 1 and 13.345 6 μg/mL, respectively. J2 moved only 0.04 cm and 0.05 cm in the treatments by 2 μg/mL abamectin and 3 μg/mL cadusafos, but they moved 1.04 cm in the control. The infection rate in the treatments by 2 μg/mL abamectin and 50 μg/mL cadusafos was 0.12% and 0.45%, respectively, while the infection rate was 21.85% in the control.
Keywords:Meloidogyne incognita  abamectin  cadusafos  infectivity  mobility
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