氟啶虫胺腈对芦笋蚜虫的防治效果和作物安全性评价

Control efficacy and phytotoxicity of sulfoxaflor 22%SC against Asparagus aphids

为芦笋蚜虫防治提供有效药剂,开展了22%氟啶虫胺腈悬浮剂对芦笋蚜虫的1年3地田间药效试验及其对芦笋的室内安全性试验。结果表明,22%氟啶虫胺腈悬浮剂使用有效成分剂量54、72、90 g/hm^(2)进行喷雾,对芦笋蚜虫表现出很好的防治效果以及良好的速效性与持效性。药后3、7、14 d,其防效分别在65.1%~95.9%、70.0%~98.4%、61.2%~97.7%之间,且对芦笋生长安全。建议22%氟啶虫胺腈悬浮剂用于防治芦笋蚜虫,推荐使用有效成分剂量为54~90 g/hm^(2),于蚜虫发生初期施药1次。

A one-year field efficacy trial of sulfoxaflor 22%SC in three locations and indoor safety tests on asparagus were conducted.The results showed that the sulfoxaflor 22%SC,when applied at effective ingredient doses of 54,72,and 90 g/ha,demonstrated excellent control effects,rapid action,and persistence against asparagus aphids.At 3,7,and 14 days after treatment,the control effects ranged from 65.1%-95.9%,70.0%-98.4%,and 61.2%-97.7%,respectively,and the growth of asparagus was safe.It is recommended that sulfoxaflor 22%SC be used for the control of asparagus aphids,with a recommended dosage of the effective ingredient at 54-90 g/hm^(2),applied once at the early stage of aphid occurrence.