期刊
PHYSIOLOGICAL ENTOMOLOGY
卷 37, 期 1, 页码 81-91出版社
WILEY
DOI: 10.1111/j.1365-3032.2011.00824.x
关键词
Artificial blends; essential oils; feeding deterrence; Lamiaceae; Lauraceae; Myrtaceae; synergistic effects; Trichoplusia ni
类别
资金
- NSERC [2729-06]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior [Proc. 3346/10-2]
The relationship between chemical composition and feeding deterrent activity of seven essential oils is explored, including those from Syzygium aromaticum (L.) Merr. & Perry (Myrtaceae), Cinnamomum zeylanicum Blume (Lauraceae), Lavendula latifolia (L.) Medicus, Lavendula angustifolia L., Mentha crispa L., Mentha arvensis L. and Mentha piperita L. (Lamiaceae) against an important agricultural pest, the cabbage looper (Trichoplusia ni Hubner, Noctuidae), using a leaf-disc choice bioassay. Comparison of the deterrent activity of full mixtures' with respective artificial blends missing individual constituents demonstrates that, for most oils, minor constituents in a mixture can be as important as major constituents with respect to the overall feeding deterrent effect. There is a lack of correlation between the feeding deterrent effect of an individual constituent of an essential oil and its contribution to the overall activity of the full mixture in some cases. The effect of removing an individual constituent from the mixture of an essential oil depends on the unique properties of the mixture, which in turn may reflect the interaction of its constituents. Understanding the role and contribution of each constituent to the overall activity of the oil can facilitate the creation of artificial blends that optimize their efficacy against different pests.
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