Cross-resistance of a chlorpyrifos-methyl resistant strain of Oryzaephilus surinamensis (Coleoptera: Cucujidae) to fumigant toxicity of essential oil extracted from Eucalyptus globulus and its major monoterpene, 1,8-cineole

Sung Eun Lee, Won Sik Choi, Hoi Seon Lee, Byoung Soo Park

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Abstract

The fumigant toxicities of eucalyptus essential oil and 1,8-cineole, the major component of eucalyptus oil, were tested against a chlorpyrifos-methyl resistant strain and a reference strain of the sawtoothed grain beetle, Oryzaephilus surinamensis (L.). The resistant strain showed 1.9- and 2.2-fold higher tolerance against essential oil and 1,8-cineole fumigation toxicity, respectively, relative to the susceptible strain. The increased tolerance for the essential oil may be the result of cross-resistance. The resistance mechanisms in the resistant strain are discussed in relation to elevated detoxifying enzymes such as cytochrome P450 and esterases. (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)383-389
Number of pages7
JournalJournal of Stored Products Research
Volume36
Issue number4
DOIs
StatePublished - 15 Oct 2000

Keywords

  • 1
  • 8-Cineole
  • Cross-resistance
  • Essential oil
  • Eucalyptus globulus
  • Fumigant toxicity
  • Oryzaephilus surinamensis

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