11%阿维菌素·三氟苯嘧啶悬浮剂防治广东稻区稻飞虱和稻纵卷叶螟的药效试验评价  

Field efficacy of abamectin·triflumezopyrim 11%SC against rice planthoppers and rice leaf folders in Guangdong province

作　　者：李广泽[1] 黄柯程[1] 朱卫锋[1] 张胜超 曹明章[1] LI Guangze;HUANG Kecheng;ZHU Weifeng;ZHANG Shengchao;CAO Mingzhang(Shenzhen Noposion Agrochemical Co.,Ltd.,Shenzhen 518102,Guangdong,,China)

机构地区：[1]深圳诺普信农化股份有限公司,深圳518102

出　　处：《世界农药》2021年第8期26-32,共7页World Pesticide

基　　金：国家重点研发计划(2018YFD0030107)。

摘　　要：2015年-2016年,采用田间小区试验评价了11%阿维菌素·三氟苯嘧啶悬浮剂(SC)对稻飞虱、稻纵卷叶螟的防治效果。结果表明,11%阿维菌素·三氟苯嘧啶SC能有效控制稻飞虱、稻纵卷叶螟为害,其在有效成分用量为16.5~33 g/hm^(2)时,药后1~30 d对稻飞虱防治效果为88.14%~96.23%,药后14 d对稻纵卷叶螟防治效果为76.28%~87.79%,其对稻飞虱和稻纵卷叶螟的防治效果均优于1.8%阿维菌素EC有效成分用量9 g/hm^(2),对稻纵卷叶螟的效果显著优于10%三氟苯嘧啶SC有效成分用量25 g/hm^(2)和25%吡蚜酮WP有效成分用量90 g/hm^(2)的效果。11%阿维菌素·三氟苯嘧啶SC不仅对稻飞虱高效、持效期长达30 d,还可有效兼防田间发生初期的稻纵卷叶螟。建议在水稻分蘖至孕穗期对稻飞虱、稻纵卷叶螟做好监测预报的基础上,根据田间害虫发生情况,推荐11%阿维菌素·三氟苯嘧啶SC有效成分用量24.75~33 g/hm^(2)喷雾施用1次来防治这两种害虫。Field plot experiments were conducted to evaluate control efficacy of triflumezopyrim·abamectin 11%SC against rice planthoppers and rice leaf folders in Guangdong province in 2015-2016.The results showed that triflumezopyrim·abamectin 11%SC could effectively controlled the above pests.The field efficacy of triflumezopyrim·abamectin 11%SC at dosage of 16.5-33 g ai/hm^(2) against rice planthoppers were 88.14%-96.23% at 1-30 days after treatment and that against rice leaf folders were 76.28%-87.79% at 14 days after treatment,and it was better than that of abamectin 1.8%EC against rice planthoppers and rice leaf folders at dosage of 9 g/hm^(2),and significantly better than those of triflumezopyrim 10%SC at dosage of 25 g/hm^(2) and pymetrozine 25%WP at dosage of 90 g/hm^(2) against rice leaf folders,respectively.In summary,triflumezopyrim·abamectin 11%SC not only has a good control efficacy against rice planthoppers and exhibits longer persistence for up to 30 days,but also can effectively control rice leaf folders in the early development stage.It is recommended that 24.75-33 g/hm^(2) of triflumezopyrim·abamectin 11%SC should be sprayed once from rice tillering stage to booting stage according to the occurrence of field pests on the basis of monitoring and forecasting of rice planthoppers and rice leaf folders.

关 键 词：三氟苯嘧啶 阿维菌素 稻飞虱 稻纵卷叶螟 防治效果 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治] TQ453[农业科学—植物保护]