30%吡蚜酮·速灭威WP防治稻飞虱的效果评价

Effect evaluation of "Baotaifeng"' s application to control rice planthopper

以钦州市第7代稻飞虱为防治对象,开展田间药剂药效试验,结果:30%吡蚜酮.速灭威WP 60 g/667m2和45 g/667m2处理药后7d、14d对稻飞虱防效均达93%以上,其速杀性和持效性均好于对照25%吡蚜酮WP30g/667m2处理,试验结果表明,30%吡蚜酮.速灭威WP对稻飞虱具有优良的防效,建议生产上使用剂量为45-60g/667m2。

To take seventh generation planthopper in Qinzhou as control object and an insecticide experi- ment was conducted in paddy field. The results show that 7d and 14d after ＂Baotaifeng＂＇s application with 60 g/667m2 45 g/667m2, , the control effect will reach over 93% and the killing speed and effect of ＂Baotaifeng＂ are all better than CK（＂Feidian＂） . So the ＂Baotaifeng＂ has a good effect for pl- anthopper control, which is suggested to be applied by 45 -60 g/667m2 in production.