甲氧滴滴涕乳油防治菜青虫试验  

A STUDY ON CONTROLLING PIERIS RAPEA LINNE WITH 25% DMDT EC

作　　者：李冬梅[1] 刘慧平[1] 韩巨才[1] 

机构地区：[1]山西农业大学植保系,太谷030801

出　　处：《山西农业大学学报》1996年第3期243-245,共3页

摘　　要：本文针对菜青虫(Pieris rapae Linne)在蔬菜上为害的严重性,做了防治此虫的毒力测定与药效试验.结果表明:甲氧滴滴涕乳油对菜青虫的触杀LD_(50)值为9.6720微克/克;在田间,用25%甲氧滴滴涕乳油200×稀释液可基本控制其为害,并残效期在半个月以上.用该药防治此虫使用方法简单,防治费用低,可以在田间推广使用.This experiment was conducted on controlling Pieris rapae Linne which causesed great damage on vegetable. The result showed that the contact LD50 of DMDT was 9. 6720μg/g indoor; 200 tims diluenceof 25% DMDT EC can give effective control to pieris rapae L. in the field. This insecticide is effective for more than 15 days. DMDT is safe to human being and domestic animals, so it can be used in our country.

关 键 词：菜青虫 防效 毒力 甲氧滴滴涕乳油 

分 类 号：S436.341.2[农业科学—农业昆虫与害虫防治]