11种杀虫剂对麦蚜药效评价

Evaluation of Eleven Insecticides for Controlling Aphis in Wheat Field

在田间用１１种较新及常用药剂对麦蚜做了药效比较试验，各制剂均稀释为２０００倍液，丁硫克百威、吡虫琳、硫丹、吡虫清及β－氟氯氰菊酯药后１～７天防效均在９５％以上；溴氰菊酯防效在９０％以上；唑蚜威防效在９０％左右；高效氯氰菊酯防效在８５％以上；马拉硫磷初效可达９０％，而持效性差；常用的药剂氧乐果第三天防效虽达９０．７％，而１、７天防效仅分别为８７．９％及８０．６％

The efficacy of eleven insecticides was evaluated against aphis in wheat field.The results showed that carbosulfan,imidacloprid,endosulfan,acetaniprid and beta-cyfluthrin were the best of 11 insecticides.The efficiency of each was over 95% after 17 days of treatment with 2000 times diluent.These insecticides showed good performance to control wheat aphis.RH-7988 and deltamethrin were the second best.The efficiency of each was 90%.Cypermethrin,malathion,omethoate and dimethoate showed lower efficacy.