16种杀虫剂对稻飞虱的田间防治效果

为进一步明确现有杀虫剂对水稻稻飞虱的效果。在大田中，以喷雾施药法对16种杀虫剂进行了防治稻飞虱的田间试验。结果表明：用药7d后，对稻飞虱控制效果最好的是氟虫睛，达96.6%，最差的是啶虫脒，仅24.9%。16个杀虫剂中防治效果≥90%的有氟虫腈、吡虫啉、噻嗪酮及辛硫磷4种；防治效果达80%~90%的有仲丁威、毒死蜱和异丙威3种；防治效果为70%~80%的有5种，防治效果在60%~70%的及防治效果＜60%的各有2种。因此，目前能有效控制稻飞虱为害的杀虫剂仍然是吡虫啉、噻嗪酮、仲丁威EC和异丙威，以及氟虫腈、毒死蜱及辛硫磷。

The Control Effect of 16 Insecticides Against Nilaparvata lugens

To understand the control effect of imidacloprid preparations against Nilaparvata lugens, 16 insecticides were tested in rice through field spray. The results showed that, 7 days after single spray, fipronil got the maximum control effect of 96.6% and asetamiprid got the minimum control effect of 24.9%. Among the 16 insecticides tested, fipronil, imidacloprid, buprofezin and phoxim got control effect above 90%; fenobucarb, chlorpyrifos and isoprocarb were between 80%~90%; 5 kinds were 70%~80%, 2 kinds were 60%~70% and 2 kinds were below 60%. It was concluded that, imidacloprid, buprofezin, fenobucarb, and isoprocarb, as well as fipronil, chlorpyrifos, and phoxim can effectively prevent the attack by Nilaparvata lugens in rice.