六种杀虫剂对小麦穗蚜的防治效果

Control Efficacy of Six Insecticides against Macrosiphum avenae (F.)

田间药效试验结果表明 ,所试 6种杀虫剂对小麦穗蚜均有较好的防治效果。其中 4 8%毒死蜱乳油 10 0 0倍液和 10 %吡虫啉可湿性粉剂 30 0 0倍液药后 10天防治效果均在 85 %以上 ,优于4 0 %敌畏·氧乐乳油 10 0 0倍液和 85 %增效机油乳油 80 0倍液 ,极优于 4 0 %氧乐果乳油 10 0 0倍液和 80 %敌敌畏乳油 80

The results of field trial showed that 6 insecticides gave good control effect against Macrosiphum avenae(F.).Among them,the control effects against Macrosiphum avenae(F.) of chlorpyrifos 48EC(1∶1000) and imidacloprid 10WP(1∶3000) are all over 85% after 10 days,which are better than those of dichlorovos-omethoate 40EC(1∶1000) and synergized mineral oil 85EC(1∶800) and much better than those of omethoate 40EC(1∶1000) and dichlorovos 80EC(1∶800).