摘要
为筛选出防治暴食性害虫灰茶尺蠖的有效应急药剂,采用浸叶法,测定了7种杀虫剂对灰茶尺蠖2龄幼虫的毒力。结果表明:杀虫剂较低浓度处理48 h比24 h的校正死亡率高,毒杀效果明显。虫螨腈处理24 h对灰茶尺蠖毒力最高,拟除虫菊酯类杀虫剂次之,茚虫威和唑虫酰胺毒力较低。本研究可为茶园夏秋季应急防治灰茶尺蠖的合理用药提供参考。
To prevent and control the larva of Ectropis grisescens the toxicity of seven insecticides were tested against 2nd instar larvae of E.grisea by leaf dipping method in laboratory.The results indicated that the adjusted mortality of insecticides for 48 h to second-instar larvae of E.grisescens was obviously higher than that for 24 h.Chlorfenapyr for 24 h had the highest toxicity to second-instar larvae of E.grisea,followed by pyrethroids,indoxacarb and tolfenpyrad.This study can provide a reference for the rational insecticides use of E.grisea in the emergency control in summer and autumn's tea gardens.
作者
金银利
史洪中
马全朝
林艺文
张中华
JIN Yin-li;SHI Hong-zhong;MA Quan-chao;LIN Yi-wen;ZHANG Zhong-hua(College of Agriculture, Xinyang Agriculture and Forestry University, Henan Provincial South Henan Crop Pest Green Prevention and Control Academician Workstation, Xinyang 464000, China)
出处
《信阳农林学院学报》
2020年第1期92-96,共5页
Journal of Xinyang Agriculture and Forestry University
基金
河南省科技攻关项目(172102110235)
信阳农林学院青年教师科研基金资助项目(201701007)
茶园化肥农药减施增效技术集成研究与示范(2016YFD0200900).
关键词
灰茶尺蠖
杀虫剂
毒力评价
浸叶法
Ectropis grisescens
insecticide
toxicity assessment
leaf dipping method
