三种杀虫剂对从南京食用菌大棚随机捕获的Bradysia的防治效果  

Efficacyof Thiamethoxam,Pymetrozine and Acetamipridin ControllingBradysia Under Laboratory Conditions and in a Pleurotus ostreatus Cultivation Facility

作　　者：马林[1,2] 林金盛 曲绍轩[1] 李辉平[1] 侯立娟[1] 蒋宁[1] 宋金俤[1] 

机构地区：[1]江苏省农业科学院蔬菜研究所,江苏南京210014 [2]江苏省高效园艺作物遗传改良重点实验室,江苏南京210014

出　　处：《食用菌学报》2017年第3期87-90,共4页Acta Edulis Fungi

基　　金：现代农业产业技术体系建设专项资金(CARS24);江苏省三新工程项目[SXGC(2016)336];苏北科技专项(BN2015049)资助

摘　　要：采用浸渍法和喷雾法分别测定了吡蚜酮、啶虫脒、噻虫嗪对发生在南京食用菌生产大棚中的1种迟眼蕈蚊(Bradysia sp.)进行室内毒力和田间防治效果试验,并对喷药后第7天的糙皮侧耳(Pleurotus ostreatus)子实体采用高效液相色谱法(HPLC)测定农药残留量。结果显示:吡蚜酮、啶虫脒、噻虫嗪对眼蕈蚊都有杀虫活性,其中噻虫嗪效果最好,LD50为58.27mg/L,稀释1000倍施用,7d后黄板上成虫数显著低于其它处理;噻虫嗪处理第7天,糙皮侧耳子实体中残留量低于20μg/kg。因此,食用菌栽培中,噻虫嗪用于防治南京眼蕈蚊,安全有效。The efficacy of thiamethoxam,pymetrozine and acetamiprid in controlling Bradysia under both laboratory conditions and in a Pleurotus ostreatus cultivation facility is described.Thiamethoxam exhibited the highest toxicity（LD50=58.3 mg/L）under laboratory conditions,and a smaller number of adult gnats survived two applications of this pesticide（103-fold dilution）compared with corresponding concentrations of pymetrozine and acetamiprid.Although HPLC revealed residues of all three pesticides in P.ostreatus fruit bodies seven days following application,thiamethoxam levels were below 20μg/kg indicating this pesticide may be suitable for controlling Bradysia under mushroom cultivation conditions.

关 键 词：杀虫剂 食用菌大棚 迟眼蕈蚊 害虫防治 残留 

分 类 号：S436.46[农业科学—农业昆虫与害虫防治]