摘要
测定了5种不同作用机理杀螨剂对苹果树红蜘蛛的防效,并对其田间的应用效果进行评价。结果表明:三唑锡20%悬浮剂800倍液和唑螨酯5%悬浮剂2 000倍液速效性和持效性均较好,药后2d防效即达到90%以上,持效期25d以上;矿物油99%乳油和阿维菌素1.8%乳油速效性一般,但持效期较长,也能达到25d以上,哒螨灵40%可湿性粉剂防效一般。三唑锡20%悬浮剂和唑螨酯5%悬浮剂可快速有效地防治苹果树红蜘蛛,对天敌等影响较小,对作物安全,可作为防治的首选药剂使用。
In this paper, five pesticides with different mechanisms were conducted against Panonychus ulmi through field trail. The results showed that 20% azocyclotin SC and 5% fenpy- roximate SC had significant effect on P. ulmi with the control efficacy over 90% at second day and 25th day after the treaments. 99% petroleum oil EC and 1.8% abamectin EC also had good effects on P. ulmi, these two pesticides had an effective period of more than 25 days in the fields. 20% azocyclotin SC and 5% fenpyroximate SC could control P. ulmi timely and effectively and were safe on natural enemies and crops. Therefore, they were worth to select priority in the field use.
出处
《农药科学与管理》
CAS
2012年第9期45-47,共3页
Pesticide Science and Administration
关键词
苹果红蜘蛛
杀螨剂
药效试验
Panonychus ulmi （Koch）
acaricide
field trail
