论文部分内容阅读
用1×109PIB/g斜纹夜蛾核型多角体病毒·15%,虫酰肼悬浮剂进行了甘蓝斜纹夜蛾的田间药效试验。结果表明:供试药剂对甘蓝斜纹夜蛾具有良好的防治效果,田间制剂用量1 500 g/hm2时,药后3天对甘蓝斜纹夜蛾幼虫的防效达到80%,以上,且持效期达14 d,显著优于对照药剂1×109PIB/g斜纹夜蛾核型多角体病毒可湿性粉剂1 500 g/hm2的防效和持效期,说明1×109PIB/g斜纹夜蛾核型多角体病毒·15%,虫酰肼悬浮剂在防治甘蓝斜纹夜蛾上具体良好的推广应用前景。
Field efficacy trials of Spodoptera litura with 1 × 109PIB / g Spodoptera litura nucleopolyhedrovirus 15% and tebufenozide suspension were carried out. The results showed that the tested agents had a good control effect on Spodoptera exigua. When the dosage of field agent was 1 500 g / hm2, the control efficacy on Spodoptera exigua larvae reached 80% Up to 14 days, which was significantly better than that of the control drug 1 × 109PIB / g WP WP 1 500 g / hm2, indicating that the 1 × 109PIB / g Spodoptera litura nuclear multi-angle Body virus · 15%, tebufenozide suspending agent in the control of cabbage Spodoptera special good promotion and application prospects.