• Title/Summary/Keyword: 효성

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Toxicity Evaluation of Agricultural Insecticides on Workers of Pharaoh Ant, Monomorium pharaonis (Hyme-noptera : Formicidae) (애집개미 (Monomorium pharaonis) 일개미에 대한 농업용 살충제의 독성평가)

  • Kang, Shin-Ho;Han, Jong-Been;Park, Shin-Sub;Kim, Gil-Hah
    • The Korean Journal of Pesticide Science
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    • v.10 no.3
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    • pp.218-224
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    • 2006
  • Toxicities of 34 agricultural insecticides was tested against Monomorium pharaonis workers by diet dipping method. Ten insecticides among them, bifenthrin, chlorpyrifos, chlorpyrifos-methyl, cypermethrin, dichlorvos, fenthion, fenitrothion, methidathion, pirimifos-methyl, and phenthoate showed 100% rapid mortality. $LC_{50}$ (ppm) values of selected insecticides were appeared on the order of pirimifos-methyl (0.33), chlorpyrifos-methyl (0.76), phenthoate (1.70), bifenthrin (1.78), dichlorvos (2.50), cypermethrin (9.92), chlorpyrifos (22.21), fenitrothion (36.58), fenthion (40.96), and methidathion (64.34). $LT_{50}$ (day) values by diet dipping method showed that dichlorvos, benfuracarb and cypermethrin acted more rapid than boric acid and hydramethylnon. The values of the former three were 0.25, 0.38 and 0.27 days, and those of the latter two were 3.4 and 2.6 days, respectively. In persistance effect tests, chlorpyrifos-methyl, fenthion and methidathion showed over 90% insecticidal activity for 13 days.

Contact and Residual Toxicities of 26 Insecticides Against the Cigarette Beetle, Lasioderma serricorne and the Maize Weevil, Sitophilus zeamais (권연벌레와 어리쌀바구미에 대한 26종 살충제의 접촉독성 및 잔효성)

  • Cho, Sun-Ran;Shin, Youn-Ho;Yoon, Chang-Mann;Kim, Gil-Ha
    • The Korean Journal of Pesticide Science
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    • v.15 no.3
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    • pp.310-316
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    • 2011
  • 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.

Property and Mode of Action of Indoxacarb against Diamondback Moth, Plutella xylostella (Lepidoptera: Plutellidae) (배추좀나방에 대한 Indoxacarb의 작용특성 및 기작)

  • Choi Yu-Mi;Ahn Ki-Su;Hwang In-Cheon;Kim Gil-Hah
    • Korean journal of applied entomology
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    • v.43 no.4 s.137
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    • pp.317-322
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    • 2004
  • Insecticidal activity, systemic and residual effects, and effects on enzyme activities (esterase, acetylcholinesterase, glutathione S-transferase) of indoxcarb were evaluated against Plutella xylostella. The insecticide was very effective against larvae of P. xylostella. Also, indoxacarb showed only residual effect to P. xylostella when applied to vegetable leaves. It inhibited acetylcholinesterase activity, but didn't do esterase and glutathione S-transferase activities.