Summary
The trans decalin unit of clerodendrin has antifeedant activity in larvae ofPieris brassicae, but not in larvae ofSpodoptera littoralis andS. exigua. It is suggested that antifeedant activity of clerodanes forSpodoptera spp. is based on the combination of a furofuran ring and epoxy diacetate groups in the decalin unit.
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Geuskens, R.B.M., Luteijn, J.M. & Schoonhoven, L.M. Antifeedant activity of some ajugarin derivatives in three lepidopterous species. Experientia 39, 403–404 (1983). https://doi.org/10.1007/BF01963148
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DOI: https://doi.org/10.1007/BF01963148