20%呋虫胺可溶粒剂防治水稻稻飞虱效果及应用技术

Control Effect and Application Technology of Dinotefuran 20% SG on Rice Planthopper

为评价20%呋虫胺可溶粒剂对稻飞虱的防效,2016年开展了田间小区药效试验。结果表明,20%呋虫胺可溶粒剂对水稻稻飞虱有很好的防治效果,表现出良好的速效性和持效性,且对水稻安全,生产上有推广应用前景。建议20%呋虫胺可溶粒剂在水稻稻飞虱低龄若虫发生高峰期施用,其适宜制剂用量为450 g/hm^2。

In order to evaluate the control effect of dinotefuran 20% SG against rice planthopper, the field efficacy trials were carried out. The results showed that dinotefuran 20% SG had good control effect on rice planthopper, with good quick-acting and persistence efficacy. Therefore, it had a good application prospect in rice. The application stage should be the peak of nymph occurrence of the rice planthopper. The optimum dosage of dinotefuran 20% SG was 450 g/hm^2.