杀虫混剂MA-95防治第四代棉铃虫药效试验

Study on a New Insecticide Mixtuer MA 95 Controlling 4th Generation Cotton Bollworm in Field Experiment

用一种新的杀虫混剂ＭＡ－９５防治第四代棉铃虫，１５００ｍＬ／ｈｍ２常量喷雾，药后５ｄ校正防效９５．９６％，较灭铃皇为优，且具有较好的杀卵效果。实际防治成本较灭铃皇低三分之一至二分之一。鉴于混剂ＭＡ－９５中有效成分独特的作用机理，预期对缓解棉铃虫的抗药性也有重要意义。

A new insecticide mixture MA 95 was examined in controlling 4th generation cotton bollworm. Five days lately, the correction effect was 95.96%, sprayed with 1800 ml/hm 2. The controlling effect of this chemical was better than that of Mielinghuang. It had also killing egg effect. Reality controlling cost was only two thirds to a half of Mielinghuang might have been. In view of special toxicology of the effective composition, MA 95 may be importance to put off cotton bollworm resistance.