25%敌虫灵水乳剂根灌防治萝卜根蛆的药效试验  

The Effect Test of 25% Isofenphos-methyl EW on Turnip Maggot by Root Watering

作　　者：孙化民[1] 宁守俭[2] 

机构地区：[1]沈阳大学师范学院生物系 [2]沈阳大学师范学院化工研究所

出　　处：《农药》1998年第10期31-32,共2页Agrochemicals

摘　　要：２５％敌虫灵（甲基异柳磷）水乳剂对萝卜根蛆具有较好的防治效果。根灌试验表明，２５％敌虫灵水乳剂５００倍液防效可达１００％，７５０倍液的防效为９５２％，而１０００倍液的防效与４０％甲基异柳磷乳油１５００倍液的防效大致相同，但可降低成本３１５％。试验结果表明田间应用的最佳稀释浓度为７５０～１０００倍液。of isofenphos-methyl EW has a good effect against turnip maggots(Hylemya floralis Fallen).Root watering shows that the effectiveness of 25% isofenphos-methyl EW can reach 100% when it is 500 times diluted,and the effectiveness of it can reach 95.2% when it is 750 times diluted.Its effectiveness after 1000 times dilution is the same as that of 40% isofenphos-methyl after 1500 times dilution.But the cost is reduced by 31.5%.The best dilution in the field application should be 750～1000 times.

关 键 词：敌虫灵 根灌 萝卜 根蛆 药效试验 杀虫剂 

分 类 号：S436.31[农业科学—农业昆虫与害虫防治] S481.9[农业科学—植物保护]