O. gallerucae has repeatedly been introduced into the United States for the control of X. luteola . Besides oviposition also jasmonic acid can induce field elm leaves to emit volatiles that attract the parasitoids of the elm leaf beetle. The induced synomones and the elicitor in the oviduct secretion are characterised and analysed. Interactions in other tritrophic systems are investigated in a similar manner, e.g. between the egg parasitoid O. galerucivorus Hedqvist , the polyphagous tansy leaf beetle Galeruca tanaceti L. and its different host plants. Chemical cues mediating interactions between chrysomelids and parasitoids.
Chemical cues mediating interactions between chalcidoid egg parasitoids and their chrysomelid hosts.
Induction of plant synomones by oviposition of a phytophagus insect. Specificity of chemical cues used by a specialist egg parasitoid during host location.