【摘要】 测定了甲基嘧啶磷、四溴菊酯、DDVP3种保护剂对面粉、烤烟饲养的烟草甲的室内触杀毒力。结果表明:3种保护剂对烟草甲触杀活性的大小依次为:四溴菊酯>甲基嘧啶磷>DDVP;不同食料对烟草甲幼虫的药剂敏感性也产生变化。更多还原

【Abstract】 The contacting toxic ability of pirimiphos-methl,thralomethric and DDV to the tobacco beetles,Lasioderma serricorne（Fabricius）was tested. Two different diets in the laboratory were raised and these recursive equations of their toxic ability and the LC₅₀ were respectively gained. The results showed that the gradation of toxic ability of the three protection pesticides acting the cigarette beetle was:thralomethric>pirimiphos-methl>DDVP.Besides,the different diets had influenced the pesticide susceptibility obviously.更多还原