30%吡蚜·噻虫胺悬浮剂对水稻稻飞虱的田间防效

Field Efficacy of 30%Pyrin·Thiamidomide Suspension Concentrate on Rice Planthopper

为了解杀虫剂在农业生产上的用药安全性,本研究以20%烯啶虫胺水剂和25%吡蚜酮悬浮剂作为对照药剂,调查了30%吡蚜·噻虫胺悬浮剂对稻飞虱的田间防治效果.试验结果表明,30%吡蚜·噻虫胺悬浮剂对水稻安全,对稻飞虱的防治效果高于2种对照药剂,且防治效果随着施药时间的延长而增强.施药后15 d,稻飞虱的虫口减退率达到90.33%,对稻飞虱防治效果达到93.56%.研究结果为大面积推广应用该药剂提供了科学依据.

In order tounderstand the safety of using pesticides in agricultural production and to provide a scientific basis for the application of pyrimidine·clothianidam in a large area,in this study,we investigated the field efficacy of 30%pyrimidine·clothianidam suspension concentrate against rice planthopper,with 20%enidetamine aqueous solution and 25%pyrimidine suspension concentrate as the control agents.The results showed that 30%pyryzhid·clothianidam suspension concentrate was safe to the rice crop,its control efficacy on rice planthopper was higher than that of the two control agents,and its field efficacy increased with the prolongation of application time.After application of the tested insecticide for 15 d,the population of rice planthopper was reduced by 90.33%,and the field efficacy on rice planthopper was 93.56%.