几种新农药对稻飞虱的防治效果比较

Control Effects of Several New Pesticides on Rice Planthopper

选用25%噻嗪酮可湿性粉剂、10%乙虫腈悬浮剂、48%噻虫啉悬浮剂和10%烯啶虫胺水剂防治稻飞虱,通过试验得知,48%噻虫啉悬浮剂对水稻稻飞虱表现出良好的防治效果,药后1 d对稻飞虱的防效为44.0%,药后3 d对稻飞虱的防效为81.9%,与烯啶虫胺有显著差异,速效性稍差,但7 d后对稻飞虱的防效为95.2%,与烯啶虫胺、乙虫腈无显著差异,持效作用突出。

In order to find out the control effects of 4 kinds of new pesticides for rice plan/hopper, the experiments were conducted by using 25% buprofezin wettable powder （BWP）, 10% ethiprole suspension concentrate （ESC）, 48% thiacloprid suspension concentrate （TSC） and 10% nitenpyram water agent （NWA）, respectively. The results showed that 48% TSC expressed a great control effect for rice plan/hopper： 1 day after application, the control efficiency was 44.0%; 3 days after application, the control efficiency was 81.9%, there was a significant different between TSC and NWA and the swift effect of TSC was worse; but 7 days after application, the control efficiency was 95.2%,/here were no significant different between TSC, NWA and ESC, the durable effect of TSC was prominent.