Journal of Chemical Ecology (1995) 21, 1031-1042

J.R. Aldrich (1995)
Testing the 'new associations' biological control concept with a tachinid parasitoid (Euclytia flava)
Journal of Chemical Ecology 21 (7), 1031-1042
Abstract: Males of the spined soldier bug, Podisus maculiventris (Heteroptera: Pentatomidae), produce an attractant pheromone that is exploited as a host-finding kairomone by a complex of parasitic species. The capability to catch hundreds of a generalist tachinid fly parasitoid, Euclytia flava, alive in traps baited with the pheromone of P. maculiventris provided an opportunity to test the premise of the 'new associations' biological control concept. The hypothesis that host species newly associated with a parasitoid are maladapted relative to native-native associations was tested by giving E. flava females a choice between native and exotic stink bugs (Heteroptera: Pentatomidae). Wild E. flava females preferred to oviposit on exotic pentatomid species rather than indigenous, known host species, both in field traps baited with the pheromone of a native host and in the laboratory. Data presented here demonstrate that an invader may be vulnerable to native parasitoids in one aspect of the parasitism process (acceptance), yet go unrecognized as a potential host.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jeffrey R. Aldrich

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Podisus maculiventris (predator)
Euclytia flava (parasitoid)