| 七星瓢虫对常用杀虫剂的敏感性监测 |
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| 作者姓名： | 刘永齐 刘慧平 韩巨才 刘慧芹 |
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| 作者单位： | 山西林业职业技术学院，山西农业大学农学院，天津农学院园艺系 |
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| 基金项目： | 山西省留学回国人员科研启动基金，山西省科技攻关项目 |
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| 摘 要： | 采用FAO推荐的微量点滴法和药膜法,分别测定了七星瓢虫2、3、4龄幼虫和成虫对农田与果园常用杀虫剂的敏感性.结果表明,在供试药剂中,对不同龄期幼虫毒力高低顺序,2龄幼虫为:溴氰菊酯>啶虫脒>灭多威>齐螨素>吡虫啉>辛硫磷>氧乐果>氰戊菊酯:3龄幼虫为:啶虫脒>辛硫磷>溴氰菊酯>灭多威>吡虫啉>齐螨素>氧乐果>氰戊菊酯;4龄幼虫为:溴氰菊酯>啶虫脒>齐螨素>吡虫啉>氧乐果>灭多威>氰戊菊酯>辛硫磷;对其成虫的毒力高低顺序为:马拉硫磷>氧乐果>灭多威>溴氰菊酯>齐螨素>氯氟氰菊酯>啶虫眯>吡虫啉>辛硫磷>氰戊菊酯.药剂不同对七星瓢虫成虫及不同龄期的幼虫毒力大小不一样.反应出该虫不同虫态及龄期对常用杀虫剂的敏感性存在差异.旨在为保护农田及果园的天敌提供合理用药依据.
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| 关 键 词： | 七星瓢虫 成虫 幼虫 敏感性 |
Susceptibility monitoring of Coccinella Seotempanctala (linn) to common insecticides |
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| Authors: | Liu Yongqi Liu Huiping Han Jucai Liu Huiqin |
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| Abstract: | The toxicity of common insecticides used in fields and orchards to different larva of instars and adults of ladybird(coccinella seotempanctala) was tested in the laboratory.The results showed the orders of toxicity of the insecticides to larva of different instars and adults respectively were deltamethrin >acetamiprid >methomyl > abamectin >imidacloprid >phoxim >omethoate >fenvalerate(the second instars);ac-etamiprid >phoxim > methomyl >imidacloprid >abamectin >omethoate >fenvalerate(the third instars);eltamethrin>cetamiprid>abamectin> methomy>fenvalerate>phoxim(the forth instars);malathion>omethoate> malathion>omethoate>methomyl>deltamethrin>abamectin>cyfluthrin>acetamiprid>imidacloprid>phoxim>fenvalerate(adult).The toxicity of different insecticides to adults and larva of different instars was different, which indicated different stages and instars had different susceptibility to those common insecticides.The study was to provide basis of reasonably using insecticides for protecting enemies in fields and orchards. |
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| Keywords: | Coccinella seotempanctala adult larva susceptibility |
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