Host plant iridoid-based chemical defense of an aphid,Acyrthosiphon nipponicus, against ladybird beetles
- 1 June 1989
- journal article
- research article
- Published by Springer Nature in Journal of Chemical Ecology
- Vol. 15 (6), 1837-1845
- https://doi.org/10.1007/bf01012270
Abstract
A Rubiaceae-feeding aphid,Acyrthosiphon nipponicus, is seldom attacked by the ladybird beetle,Harmonia axyridis. A potent deterrent against the beetle was isolated from the aphid and identified as paederoside, an iridoid glycoside originating in the aphid's host,Paederia scandens. The iridoid content was as high as 2% of the intact body weight, and a large portion was found in the cornicle secretion.Keywords
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