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为验证30%吡蚜·速灭威可湿性粉剂对稻飞虱的防治效果、持效时间、适宜剂量,特进行了其田间药效小区试验。结果显示,30%吡蚜·速灭威可湿性粉剂防治稻飞虱的效果好,安全高效,速效性强,每667m2用30%吡蚜·速灭威可湿性粉剂30g,药后14d对稻飞虱防效达91.9%,尤其是防治褐飞虱持效期长,防效达90.5%。推荐在水稻生育前期每667m2用30g,后期加量至每667m2用60g,即可安全有效地控制稻飞虱为害。
In order to verify the control efficacy, persistence time and appropriate dosage of 30% pymetrozine and metamisin WP on rice planthopper, their field efficacy plot test was conducted. The results showed that the 30% pymetrozine and metoclopramide WP had good effects on the prevention and control of planthoppers, safe and efficient, and fast-acting, 30g of 30% pymetrozine and metoclopramide WP per 667m2, Planthopper control efficiency of 91.9%, especially for the control of brown planthopper long duration, control effect of 90.5%. Recommended in the early rice growth for each 667m2 with 30g, the late amount to 60g per 667m2, you can safely and effectively control planthopper damage.