Enhanced fumigant toxicity of p-cymene against Frankliniella occidentalis by simultaneous application of elevated levels of carbon dioxide

A.F. Janmaat, W.J. de Kogel, E.J. Woltering

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)

Abstract

The fumigant toxicity of the essential oil component p-cymene was assessed against Western Flower Thrips, Frankliniella occidentalis. F occidentalis adult females, first- and second-instar larvae and eggs were exposed for 2, 24 and 48h to combinations of three p-cymene doses and two carbon dioxide levels (ambient, 10%). Additional experiments were conducted on F occidentalis adult females with lower carbon dioxide levels (ambient, 2%, 4%, 6%) applied in combination with p-cymene. Combined applications of p-cymene and carbon dioxide were found to increase significantly the fumigant toxicity of p-cymene against both adult female and larval thrips, but not thrips eggs. An increase in exposure time also led to an increase in adult and larval mortalities in both the p-cymene alone and combined treatments. These results indicate that by combining applications of the essential oil component, p-cymene, with increased carbon dioxide, it may be possible to achieve toxicity levels similar to those of standard chemical fumigants. (C) 2001 Society of Chemical Industry.
Original languageEnglish
Pages (from-to)167-173
JournalPest Management Science
Volume58
Issue number2
DOIs
Publication statusPublished - 2002

Keywords

  • Controlled atmosphere
  • Cymene
  • Frankliniella occidentalis
  • Essential oils
  • Fumigants
  • Postharvest
  • Thrips

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