5%啶虫脒微乳剂防治棉花蚜虫田间药效试验

Field Trial of Acetamiprid 5% ME Against Aphis gossypii

2003￣2004年在山西太原和榆次进行了5%啶虫脒微乳剂防治棉花蚜虫田间小区药效试验。结果表明,在棉蚜虫发生期,用5%啶虫脒微乳剂14.1～28.1ga.i./hm2剂量喷雾防治,药后1d的防治效果为97.4%～99.9%,药后3～7d的防治效果为96.5%～100%,等于或好于对照药剂10%吡虫啉可湿性粉剂(超微)30.0ga.i./hm2处理的防效,持效期可达7d以上。

The experiment was carried out from 2003 to 2004 in Taiyuan and Yuci for measuring effect of 5% acetamiprid ME on control of Aphis gossypii in field trials. The results showed that 5% acetamiprid ME with dosages of 14.1 to 28.1g a.i/ha had an excellent effect to control the aphids. The control effects were 97.4 to 99.9% and 96.5 to 100% in 1 day and 3 to 7 days after spraying treatment respectively, and the persistent effect reached over 7 days. Its control effect was similar to that by using 10% imidacloprid WP with 30.0g a.i./ha. Therefor, 5% acetamiprid ME was a potential candidate for aphids control.