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Fumigant toxicity of essential oils from the Myrtaceae family and 1,8-cineole against 3 major stored-grain insects

Authors
Journal
Journal of Stored Products Research
0022-474X
Publisher
Elsevier
Publication Date
Volume
40
Issue
5
Identifiers
DOI: 10.1016/j.jspr.2003.09.001
Keywords
  • Essential Oils
  • Cineole
  • Eucalyptus
  • Fumigant
  • Mortality

Abstract

Abstract Six out of 42 essential oils extracted from species of the family Myrtaceae found in Australia were shown to have potent fumigant toxicity against three major stored-grain insects: Sitophilus oryzae, Tribolium castaneum and Rhyzopertha dominica. These were the essential oils from Eucalyptus nicholii, E. codonocarpa, E. blakelyi, Callistemon sieberi, Melaleuca fulgens and M. armillaris. The LD 50 and LD 95 of the selected essential oils against S. oryzae adults were between 19.0–30.6 and 43.6–56.0 μl/l air, respectively. Also, these oils were approximately twice as toxic to T. castaneum and R. dominica at the LD 95. Fumigant effects of the essential oils rich in 1,8-cineole were considered to warrant further research into their potential for commercial use.

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