15%唑虫酰胺悬浮剂对柑橘木虱田间药效评价  

Field Efficacy of Tolfenpyrad 15% SC against Diaphorina citri Kuwayama

作　　者：潘少霖[1] 王贤达[1] 林雄杰[1] 杨川毓[1] 陈瑾[1] 范国成[1] 胡菡青[1] 

机构地区：[1]福建省农业科学院果树研究所,福州350013

出　　处：《农药》2018年第1期58-60,共3页Agrochemicals

基　　金：福建省科技计划项目-省属公益类科研院所基本科研专项(2011R1016-8);福建省农业科学院科技创新团队PI项目(2016PI-37);田间药效(药试097)

摘　　要：[目的]明确15%唑虫酰胺悬浮剂对柑橘木虱的田间防治效果,为生产上应用提供科学依据。[方法]依照田间药效试验准则进行田间药效试验。[结果]15%唑虫酰胺悬浮剂37.5、42.86、50.0 mg a.i./kg在药后1、3、7 d的田间防效均达92.3%以上,药后14 d,防效仍保持在90.0%~99.8%,表现出较好的防治效果、速效性和持效性,对柑橘无药害。[结论]建议在柑橘新梢抽发期、柑橘木虱若虫初发生时,使用15%唑虫酰胺悬浮剂37.5~50.0 mg a.i./kg喷雾为宜。[Aims] This study aims to evaluate the field efficacy of tolfenpyrad 15% SC against Asian citrus psyllid（Diaphorina citri Kuwayama） to provide scientific basis for the application of production. [Methods] According to guidelines on efficacy evaluation of pesticides, the field trials were conducted. [Results] The results showed that the control efficacy of tolfenpyrad 15% SC against D. citriatat at 37.5, 42.86, 50.0 mg a.i./kg was over 92.3% after 1, 3, 7 d.Furthermore, the control efficacy was still up to 90.0-99.8% after 14 d. The results showed that the control efficacy,quick availability and long persistence of tolfenpyrad against Asian citrus psyllid were effective. Moreover, there was no phytotoxicity appeared in the citrus treated with tolfenpyrad. [Conclusions] Tolfenpyrad was considered as a potential insecticide against Asian citrus psyllid in the field. It is recommended that this novel insecticide will be applied at 37.5-50.0 mg a.i./kg by foliar spray, when new flushes of citrus come out and the psyllid nymphs primary occur.

关 键 词：唑虫酰胺 柑橘木虱 田间防效 

分 类 号：S482.3[农业科学—农药学]