论文部分内容阅读
通过3%啶虫脒3个不同剂量、10%吡虫啉药剂对照及清水对照试验,结果表明,3%啶虫脒27、36、45g/hm2(有效成分)3个剂量的处理防效均极显著高于10%吡虫啉20g/667m2(商品量)防效,3个剂量之间防效无显著差异。3%啶虫脒3个剂量的处理药后1、3、7d防效高,平均防效99%以上;对照药剂10%吡虫啉20g/667m2(商品量)用药后防效94%,从药效、经济、农药残留等综合因素考虑,采用3%啶虫脒27g/hm2(有效成分)防治棉蚜为宜。
Three different doses of 3% acetamiprid, 10% imidacloprid control and water control test showed that 3% acetamiprid 27,36,45 g / hm2 (active ingredient) three doses of the control effect was extremely significant Higher than 10% imidacloprid 20g / 667m2 (product quantity) control effect, no significant difference between the three dose control effect. 3% acetamiprid 3 doses of anti-1, 3, 7d after the anti-high effect, the average control effect of more than 99%; control agent 10% imidacloprid 20g / 667m2 (commercial volume) , Economy, pesticide residues and other factors considered, the use of 3% acetamiprid 27g / hm2 (active ingredient) is appropriate to control cotton aphids.