Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Susceptibilities of German Cockroach, Blattella germanica to Insecticides According to Application Methods

바퀴에 대한 처리방법에 따른 살충제 감수성

  • Han Jongbeen (Dept. of Plant Medicine, Coll. of Agri, Chungbuk National University) ;
  • Kim Gil-Hah (Dept. of Plant Medicine, Coll. of Agri, Chungbuk National University)
  • 한종빈 (충북대학교 농과대학 식물의학과) ;
  • 김길하 (충북대학교 농과대학 식물의학과)
  • Published : 2004.09.01
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Abstract

Susceptibility of Blattella germanica male adults to 61 commercial insecticides was evaluated by diet dipping method. Among them three insecticides of dichlorvos, fenitrothion, and fipronil showed over $90\%$ mortality. The insect was more susceptible to dichlorvos and fenitrothion in filter paper contact method than in diet dipping one, but fipronil was vice versa. Toxicities of the three chemicals were evaluated by application parts of the such as head, thorax, abdomen, and legs. Dichlorvos and fenitrothion were more toxic when applied to head, and flpronil was thorax. $LT_{50}$ values by diet dipping method showed that fenitrothion and fipronil acted more rapidly than boric acid and hydramethylnon. The values of the former two were 1.05 and 0.98 days, and those of the latter two were 3.92 and 2.26 days, respectively.

시판되고 있는 61종 살충제에 대한 식이법으로 바퀴(Blattella germanica) 수컷성충의 우수 살충제를 탐색하고, 활성이 있는 약제를 이용하여 처리부위와 검정법에 따른 감수성 차이와 발현속도를 비교하였다. 식이법에서 $90\%$ 이상의 살충률을 나타낸 세 약제중에서 dichlorvos, fenitrothion, fipronil약제를 선발하여, 식이법과 여지접촉법으로 살충력을 비교한 결과, dichlorvos와 fenitrothion은 여지접촉법에서, fipronil은 식이법에서 더 높은 감수성을 나타내었다. 처리부위(머리, 가슴, 배, 다리)에 따라서는 dichlorvos와 fenitrothion은 머리처리에서, fipronil은 가슴처리에서 감수성이 가장 높았다. Fenitrothion과 fipronil의 $LT_{50}$(일)은 각각 1.05와 0.98로 속효성이었으며, boric acid와 hydramethylnon은 각각 3.92와 2.26으로 지효성이였다.

Keywords

References

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