6种杀虫剂对湘南地区Q型烟粉虱的药效试验

为了筛选出安全高效的防治Q型烟粉虱的化学药剂(组合),开展了6种杀虫剂对湘南地区Q型烟粉虱的防治效果试验。结果表明:22.4%螺虫乙酯1 500倍液对烟粉虱卵的灭杀效果最佳,10%吡丙醚750倍液+22.4%螺虫乙酯1 500倍液对烟粉虱若虫的防效最好,10%溴氰虫酰胺1 000倍液+22.4%螺虫乙酯1 500倍液对烟粉虱成虫的防效最佳;在对湘南地区防治Q型烟粉虱的实际操作中,选用22.4%螺虫乙酯、10%吡丙醚、10%溴氰虫酰胺3种药剂进行复配喷施可取得理想的防治效果。

Efficacy of Six Insecticides Against Bemisia tabaci Biotype Q in Southern Hu'nan

Abstract: In order to select safe and efficient chemical agents (combinations) for the control of Bemisia tabaci biotype Q, the efficacy tests of 6 insecticides on Bemisia tabaci biotype Q in southern Hu''nan were carried out. The results showed that 22.4% spirotetramat 1 500 times solution had the best killing effect on the eggs of Bemisia tabaci biotype Q, 10% pyrrolyl ether 750 times solution + 22.4% spirotetramat 1 500 times solution had the best controlling effect on the nymphs of Bemisia tabaci biotype Q, 10% bromocyanamide 1 000 times solution + 22.4% spirotetramat 1 500 times solution had the best controlling effect on the adults of Bemisia tabaci biotype Q. The compound application of 3 kinds of insecticides, such as 22.4% spirotetramat, 10% pyrrolyl ether and 10% bromocyanamide, could achieve ideal control effect in the practical operation of controlling Bemisia tabaci biotype Q in southern Hu''nan.