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Photosensitization and feeding deterrence ofEuxoa messoria (Lepidoptera: Noctuiidae) by α-terthienyl, a naturally occurring thiophene from the Asteraceae

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Summary

Alpha-terthienyl, a phototoxic thiophene derivative from species in the Asteraceae reduced feeding and growth of the phytophagous lepidopteran,Euxoa messoria, when incorporated into artificial diets at a concentration of 100 ppm. The effects of this substance were substantially enhanced by including photosensitizing near-UV radiation in the trials. The results suggest that the phototoxic properties of this secondary substance provide significant protection to the plants containing it.

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Authors and Affiliations

  1. Department of Biology, University of Ottawa, K1N6N5, Ottawa, Ontario, Canada

    D. E. Champagne, J. Th. Arnason, B. J. R. Philogène, G. Campbell & D. G. McLachlan

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  1. D. E. Champagne
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  2. J. Th. Arnason
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  3. B. J. R. Philogène
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  4. G. Campbell
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  5. D. G. McLachlan
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This work was supported by NSERC and Agriculture Canada.

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Champagne, D.E., Arnason, J.T., Philogène, B.J.R. et al. Photosensitization and feeding deterrence ofEuxoa messoria (Lepidoptera: Noctuiidae) by α-terthienyl, a naturally occurring thiophene from the Asteraceae. Experientia 40, 577–578 (1984). https://doi.org/10.1007/BF01982340

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  • DOI: https://doi.org/10.1007/BF01982340

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