【摘要】 利用播种期拌种和撒毒土的方法,开展了5种农药对花生田蛴螬的田间药效评价。试验结果表明,几种毒死蜱药剂对蛴螬的防治效果为61.95%~86.39%,以毒·辛30%微囊悬浮剂防治效果(86.39%)最好,吡虫·毒死蜱30%微囊悬浮剂(79.74%)次之,毒死蜱5%颗粒剂防治效果(61.59%)最低。从不同剂型防治蛴螬的效果来看,微囊悬浮剂显著好于颗粒剂。几种毒死蜱药剂对花生均有增产效果,分别较对照增产11.60%~21.65%,其中毒·辛30%微囊悬浮剂处理的产量最高(3 539.823kg/hm2),毒·辛8%颗粒剂、吡虫·毒死蜱30%微囊悬浮剂、毒死蜱15%颗粒剂增产效果相当,毒死蜱5%颗粒剂增产最低。在花生蛴螬的防治中,应该逐年提升毒死蜱微囊悬浮剂的使用面积。更多还原

【Abstract】 The field efficacy trials were carried out to determine the control effects of five pesticides against grubs on peanut by seed dressing and poison soil. The results showed that the control effect of several chlorpyrifos-based products was 61.95%~86.39% and there were no significant differences among those insecticides. However, among them, chlorpyrifos and phoxim 30%capsule suspension performed best with the control rate of 86.39%, followed by Imidacloprid and chlorpyrifos 30% capsule suspension 79.74%, chlopyrifos 5% granule 61.59%. In term of formulation type, capsule suspension provided a better control than granule. The yield of peanut treated by chlorpyrifos and phoxim 30% capsule suspension was the highest up to 3 539.823kg/hm2.Chlorpyrifos and phoxim 8% granule, Imidacloprid and chlorpyrifos 30% capsule suspension and chlorpyrifos 15% granule provided comparable effects of increasing yield. Chlorpyrifos 5% granule showed a worst result in increasing yield. The chlorpyrifos capsule suspension can be used to control white grubs in peanut field.更多还原