권연벌레와 어리쌀바구미에 대한 26종 살충제의 접촉독성 및 잔효성
This study was performed to evaluate the contact toxicity and residual toxicity of the 26 commercially registered insecticides against cigarette beetle, Lasioderma serricorne and maize weevil, Sitophilus zeamais adult. Among 26 insecticides, seven insecticides (chlorpyrifos, chlorpyrifos-methyl, fen...
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Veröffentlicht in: | 농약과학회지 2011, 15(3), , pp.310-316 |
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Zusammenfassung: | This study was performed to evaluate the contact toxicity and residual toxicity of the 26 commercially registered insecticides against cigarette beetle, Lasioderma serricorne and maize weevil, Sitophilus zeamais adult. Among 26 insecticides, seven insecticides (chlorpyrifos, chlorpyrifos-methyl, fenitrothion, fenthion, phenthoate, cypermethrin, ${\alpha}$-cyhalothrin) against L. serricorne adult and five insecticides (chlorpyrifos, chlorpyrifos-methyl, fenitrothion, fenthion, phenthoate) against S. zeamais adult showed perfect mortality, $LC_{50}$ (ppm) values of those selected insecticides were appeared lowest value on ${\alpha}$-cyhalothrin (1.46) against L. serricorne adult and chlorpyrifos-methyl (0.64) against S, zeamais adult, respectively. However, chlorpyrifos-methyl still remain high toxicity until 90th days after treatment against both L. serricorne and S. zeamais adults. From above results, it will be useful information to select insecticides effective against L. serricorne and S. zeamais adults. 시판되고 있는 26종의 살충제를 이용하여 권연벌레(Lasioderma serricorne)와 어리쌀바구미(Sitophilus zeamais) 성충에 접촉독성 방법인 약제감수성 잔효성에 대해 조사하였다. 권연벌레 성충에 100%의 살충율을 보인 약제는 chlorpyrifos, chlorpyrifos-methyl, fenitrothion, fenthion, phenthoate, cypermethrin, ${\alpha}$-cyhalothrin등 7종이었으며, 어리쌀바구미 성충에 대해 살충율을 보인 약제는 chlorpyrifos, chlorpyrifos-methyl, fenitrothion, fenthion, phenthoate등 5종이었다. 이들 약제의 반수치사농도($LC_{50}$ ppm)를 구한 결과, 권연벌레는 ${\alpha}$-cyhalothrin이 1.46, 어리쌀바구미는 chlorpyrifos-methyl이 0.64로 가장 낮아 독성이 높았다. 잔효성은 권연벌레 성충에 대해서는 chlorpyrifos-methyl이 처리 후 90일, ${\alpha}$-cyhalothrin이 처리 후 9일 경과까지 100% 살충효과를 나타내었다. 어리쌀바구미 성충에 대해서는 chlorpyrifos-methyl이 처리 후 90일, phenthoate가 27일까지 100%의 살충효과를 나타내었다. |
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ISSN: | 1226-6183 2287-2051 |