甘蓝夜蛾核型多角体病毒等多种药剂防治水稻大螟田间药效试验

Field Efficacy of Several Insecticides on Sesamia inferens Walker

为筛选防治水稻大螟的有效药剂,开展了甘蓝夜蛾核型多角体病毒等7种药剂防治水稻大螟的田间药效试验。结果表明:30亿PIB/mL甘蓝夜蛾核型多角体病毒SC 1 200 mL/hm^2、10%阿维·甲虫肼SC 1 200 mL/hm^2、16 000 IU/mg苏云金杆菌WP 6 000 g/hm^2等3个药剂处理对3代大螟有较好的防治效果,且保穗效果良好。34%乙多·甲氧虫SC 450 mL/hm^2、33%阿维·抑食肼WP 600 g/hm^2对大螟有一定防效。100亿孢子/mL短稳杆菌SC 1 500 mL/hm^2和20%阿维·二嗪磷EC 1 500 mL/hm^2防效较低。

In order to screen effective insecticides on Sesamia inferens Walker, field trials were carried in 2016. The results showed that Mamestra brassicae Multiple NPV 30 billion PIB/mL SC 1 200 mL/hm2, abamectin ＋ methoxyfenozide 10% SC 1 200 mL/hm2, Bacillus thuringiensis 16 000 IU/mg WP 6 000 g/hm2 had good control effects on Sesamia inferens Walker. Spinetoram ＋ methoxyfenozide 34% SC 450 mlJhm2, abamectin ＋ RH-5849 33% WP 600 g/hm2 had certain control effects.