Studies on the Insecticide Resistance of the German Cockroach (Blattella germanica L.) I. Comparisons of Toxicity by Bioassay

바퀴(Blattella germanica L.)의 살충제 저항성에 관한 연구. I. 생물검정 방법에 따른 살충력 비교

  • 방종렬 (충북대학교 농생물학과) ;
  • 이형래 (충북대학교 농생물학과) ;
  • 김정화 (충북대학교 농생물학과)
  • Published : 1993.03.01

Abstract

Experiments were conducted to study effects of different bioassay methods on toxicity to the German cockroach (Blattella germanica L.) ith six insecticides. For male adults, by dry film method, the {TEX}$LC_{50}${/TEX} value of chlorpyrifos. fenvalerate, propoxur, permethin, DDVP, and hydramethylnon was 1.79, 1.87, 3.04, 4.37, 32.72, and 270.81 ppm, respectively and the same tendency was shown in the female. For male adults, by topical micro-application method, the {TEX}$LD_{50}${/TEX} value of DDVP and fenvalerate, chlorpyrifls, permethrin, propoxur, hydramethylnon was 2.63, 3.79, 4.51, 6.73, 44.99 $\mu\textrm{g}$/g, respectively and the same tendency was shown in the female. From the diet toxicity method against male adults, the CT value (Concentration%$\times${TEX}$LT_{50}${/TEX}) showed that chlorpyrifos was rapid effective and hydramethylnon was residual effective.