杀虫剂防治糯玉米田玉米螟效果

摘要

在糯玉米吐丝期,开展了6种药剂喷灌“4腋1顶”防治糯玉米田玉米螟的田间药效试验,结果表明,喷灌25 g/L多杀菌素悬浮剂800倍液、2.2％甲氨基阿维菌素苯甲酸盐微乳剂1500倍液、1.8％阿维菌素乳油1500倍液、46％杀单·苏云菌可湿性粉剂600倍液和15％茚虫威悬浮剂2 000倍液,雌穗被害率均被控制在3％以下,防治效果达95％以上.建议生产上优先选用这些药剂用于糯玉米田玉米螟的防治.%The experiment explored the efficiency of six pesticides for corn borer in waxy corn field at silking stage by adopting the sprinkling irrigation method. The results showed that: the percentage of damaged female ear applied with 25 g/L spinosad SC 800 times diluted, 2.2% emamectin benzoate ME 1 500 times diluted, 1.8% avermectin EC 1 500 times diluted, 46% monosultap · Bt WP 600 times diluted and 15% indoxacarb SC 2 000 times diluted were lower than 3%, and the control effect was over 95%. The six pesticides were recommended for com borer control in waxy corn field.