Electroantennogram responses of the southern pine beetle parasitoid Dinotiscus dendroctoni (Ashmead) (Hymenoptera: Pteromalidae) to potential semiochemicals

In two studies using the electroantennogram (EAG) technique, bark beetle- and tree-produced semiochemicals were presented to Dinotiscus dendroctoni (Ashmead), a larval parasitoid of Dendroctonus frontalis Zimm. In the first study, 20 test compounds and a standard mixture of oxygenated monoterpenes w...

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Bibliographic Details
Published in:Journal of chemical ecology 1991-12, Vol.17 (12), p.2527-2538
Main Authors: Salom, S.M. (Virginia Polytechnic Institute and State University, Blacksburg, VA), Birgersson, G, Payne, T.L, Berisford, C.W
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
CAIROMONAS
CHIMIORECEPTEUR
Coleoptera
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
CONTROL BIOLOGICO
CONTROL DE INSECTOS
DENDROCTONUS FRONTALIS
Fundamental and applied biological sciences. Psychology
Hymenoptera
Invertebrates
KAIROMONES
LUTTE ANTIINSECTE
LUTTE BIOLOGIQUE
PARASITE
PARASITOS
Pteromalidae
QUIMIORECEPTORS
Scolytidae
SEMIOQUIMICOS
SUBSTANCE SEMIOCHIMIQUE
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Summary:In two studies using the electroantennogram (EAG) technique, bark beetle- and tree-produced semiochemicals were presented to Dinotiscus dendroctoni (Ashmead), a larval parasitoid of Dendroctonus frontalis Zimm. In the first study, 20 test compounds and a standard mixture of oxygenated monoterpenes were presented individually at one concentration to the parasitoids. In the second study, the nine compounds that elicited the greatest EAGs in study 1 were then tested as serial dilutions of 10 to 0.0001 microgram/microliter. The individual compounds did not elicit responses greater than the standard mixture of oxygenated monoterpenes. Males and females exhibited similar dose responses, although females showed lower thresholds of response than males to frontalin, terpinen-4-ol, E,Z-chalcogran, and exo-brevicomin. In both studies, pino-/isopinocamphone elicited the greatest responses at high concentrations. Tests of different ratios of the camphone mixture indicated that pinocamphone elicited the greatest response. Most of the test compounds elicited similar responses which suggests that several of the compounds may be used together by D. dendroctoni in habitat and/or host community location
ISSN:0098-0331
1573-1561
DOI:10.1007/BF00994600