几种药剂对玉米红蜘蛛的室内和大田药效  

Effect of Some Acaricides to Crop Spiders in the Room and Field

作　　者：李海平[1] 仪美芹[2] 于永成[1] 宋国晶[1] 刘玉晨[1] 

机构地区：[1]内蒙古农业大学农学院,呼和浩特010019 [2]拜耳作物科学(中国)有限公司,北京100020

出　　处：《农药》2010年第2期136-137,154,共3页Agrochemicals

摘　　要：几种杀螨剂对玉米红蜘蛛室内药效结果显示:对玉米红蜘蛛的主要种类——截形叶螨第7天的室内防效为28%哒螨灵乳油(78.3%)>240g/L螨危FS(76.7%)>1.8%阿维菌素乳油(72.0%)>40%炔满特乳油(65.9%)>40%氧乐果乳油(63.3%)>2.5%溴氰菊酯乳油(58.3%)。大田试验结果表明:30d后以240g/L螨危FS150mL/hm2的效果最佳,防效为76.8%;氧乐果由于在当地长期使用,效果已经很不理想,防治效果只有38.7%。It was studied the effect of some acaricides to crop spiders in the room and field in this paper. The results showed that Tetranychus runacatus was the main kind of specie of the crop spiders, and effect of some acaricides to T. nmacatus in room was pyridaben 28% EC（78.3%）〉spirodiclofen 240 g/L FS（76.7%）〉avermectin 1.8% EC（72.0%）〉propargite 40% EC（65.9%）〉omethoate 40% EC（63.3%）〉deltamethrin 2.5% EC（58.3%）. Effects of omethoate and spirodiclofen to crop spiders in the field were different, and effects of spirodiclofen in different concentrations to crop spiders were different too. The effect of spirodiclofen 240 g/L FS（150 mL/ha） was the best, and the value was 76.8%. Omethoate had been applied in the area for a long time, and the effect of omethoate to crop spiders was not good, the value was 38.7% 30 d.

关 键 词：玉米红蜘蛛 截形叶螨 杀螨剂 防效 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]