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The response of Dendroctonus valens and Temnochila chlorodia to Ips paraconfusus pheromone components and verbenone

Published online by Cambridge University Press:  02 April 2012

Christopher J. Fettig*
Affiliation:
Chemical Ecology and Management of Western Forest Insects, Pacific Southwest Research Station, USDA Forest Service, Davis, California 95616, United States of America
Stephen R. McKelvey
Affiliation:
Chemical Ecology and Management of Western Forest Insects, Pacific Southwest Research Station, USDA Forest Service, Davis, California 95616, United States of America
Christopher P. Dabney
Affiliation:
Chemical Ecology and Management of Western Forest Insects, Pacific Southwest Research Station, USDA Forest Service, Davis, California 95616, United States of America
Roberty R. Borys
Affiliation:
Chemical Ecology and Management of Western Forest Insects, Pacific Southwest Research Station, USDA Forest Service, Davis, California 95616, United States of America
*
1Corresponding author (e-mail: [email protected]).

Abstract

The red turpentine beetle, Dendroctonus valens LeConte, 1860 (Coleoptera: Curculionidae, Scolytinae), is a common bark beetle found throughout much of North America and China. In 2004, we observed that attack densities of the California fivespined ips, Ips paraconfusus Lanier, 1970 (Coleoptera: Curculionidae, Scolytinae), in logging debris were inversely related to D. valens attacks on freshly cut stumps, which led to the demonstration that components of the aggregation pheromone of I. paraconfusus inhibited the response of D. valens to attractant-baited traps. In this study, we test the response of D. valens and Temnochila chlorodia (Mannerheim, 1843) (Coleoptera: Trogositidae), a common bark beetle predator, to racemic ipsenol, racemic ipsdienol, and (−)-cis-verbenol (IPSR) in the presence and absence of two release rates of (−)-verbenone. The addition of a relatively low release rate of (−)-verbenone (4 mg/24 h) to attractant-baited traps did not affect catch and had no significant effect on the response of D. valens to IPSR. IPSR significantly reduced D. valens attraction to baited traps. The addition of high release rates of (−)-verbenone (50 mg/24 h) to IPSR significantly increased inhibition; however, the effect was not significantly different from that observed with (−)-verbenone alone (50 mg/24 h). Temnochila chlorodia was attracted to traps baited with (−)-β-pinene, (+)-3-carene, and (+)-α-pinene. The addition of (−)-verbenone (50 mg/24 h) significantly increased attraction. Traps baited with IPSR caught significantly more T. chlorodia than those baited with (−)-verbenone. Few other beetles were collected. We are hopeful that these results will help facilitate the development of an effective tool for protecting Pinus spp. from D. valens infestations.

Résumé

Le dendroctone rouge de l'épinette, Dendroctonus valens LeConte, 1860 (Coleoptera: Curculionidae, Scolytinae), est un scolyte commun trouvé dans presque toute l'Amérique du Nord et la Chine. En 2004, nous avons observé que la densité des attaques du scolyte à cinq épines de Californie, Ips paraconfusus Lanier, 1970 (Coleoptera: Curculionidae, Scolytinae), dans les débris de coupe est inversement proportionnelle aux attaques de D. valens sur les souches nouvellement coupées; ceci nous a conduit à démontrer que la phéromone de rassemblement d'I. paraconfusus inhibe la réaction de D. valens à des pièges chargés de substances attractives. Dans ce travail, nous testons la réponse de D. valens et de Temnochilachlorodia (Mannerheim, 1843) (Coleoptera: Trogositidae), un prédateur commun des scolytes, à l'ipsénol racémique, à l'ipsdiénol racémique et au (−)-cis-verbenol (IPSR) en présence et en l'absence de libération de deux concentrations de (−)-verbénone. L'addition de (−)-verbénone à un taux relativement faible de libération (4 mg/24 h) dans les pièges munis de substances attractives n'affecte pas les captures et n'a pas d'effet significatif sur la réaction de D. valens à l'IPSR. L'IPSR réduit de façon significative l'attirance de D. valens pour les pièges appâtés. L'addition de (−)-verbénone à un fort taux de libération (50 mg/24 h) à l'IPSR réduit significativement l'inhibition; l'effet n'est cependant pas significativement différent de celui de la (−)-verbénone (50 mg/24 h). Temnochilachlorodia est attiré vers les pièges munis de (−)-β- pinène, de (+)-3-carène et de (+)-α-pinène. L'addition de (−)-verbénone (50 mg/24 h) augmente significativement l'attraction. Les pièges munis d'IPSR capturent significativement plus de T. chlorodia que ceux garnis de (−)-verbénone. Peu d'autres coléoptères ont été capturés. Nous croyons que ces résultats contribueront à faciliter la mise au point d'un outil efficace pour protéger les Pinus spp. des infestations à D. valens.

[Traduit par la Rédaction]

Type
Articles
Copyright
Copyright © Entomological Society of Canada 2007

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References

Borden, J.H. 1997. Disruption of semiochemical-mediated aggregation in bark beetles. In Pheromone research: new directions. Edited by Cardé, R.T. and Minks, A.K.. Chapman and Hall Co., New York. pp. 421438.CrossRefGoogle Scholar
Cognato, A.I., Sun, J.H., Anducho-Reyes, M.A., and Owen, D.R. 2005. Genetic variation and origin of red turpentine beetle (Dendroctonus valens LeConte) introduced to the People's Republic of China. Agricultural and Forest Entomology, 7: 8794.CrossRefGoogle Scholar
Fettig, C.J., Borys, R.R., Cluck, D.R., and Smith, S.L. 2004. Field response of Dendroctonus valens (Coleoptera: Scolytidae) and a major predator, Temnochila chlorodia (Coleoptera: Trogositidae), to host kairomones and a Dendroctonus spp. pheromone component. Journal of Entomological Science, 39: 490499.CrossRefGoogle Scholar
Fettig, C.J., Borys, R.R., Dabney, C.P., McKelvey, S.R., Cluck, D.R., and Smith, S.L. 2005. Disruption of red turpentine beetle attraction to baited traps by the addition of California fivespined ips pheromone components. The Canadian Entomologist, 137: 748752.CrossRefGoogle Scholar
Furniss, R.L., and Carolin, V.M. 1977. Western forest insects. US Department of Agriculture Forest Service Miscellaneous Publication 1339.CrossRefGoogle Scholar
Gillette, N.E., Stein, J.D., Owen, D.R., Webster, J.N., Fiddler, G.O., Mori, S.R., and Wood, D.L. 2006. Verbenone-releasing flakes protect individual Pinus contorta from attack by Dendroctonus ponderosae and Dendroctonus valens (Coleoptera: Curculionidae, Scolytinae). Agricultural and Forest Entomology, 8: 243251.CrossRefGoogle Scholar
Grégoire, J.C., Baisier, M., Drumont, A., Dahlsten, D.L., Meyer, H., and Francke, W. 1991. Volatile compounds in the larval frass of Dendroctonus valens and Dendroctonus micans (Coleoptera: Scolytidae) in relation to oviposition by the predator, Rhizophagus grandis (Coleoptera: Rhizophagidae). Journal of Chemical Ecology, 17: 20032019.CrossRefGoogle ScholarPubMed
Hobson, K.R., Wood, D.L., Cool, L.C., White, P.R., Ohtsuka, T., Kubo, I., and Zavarin, E. 1993. Chiral specificity in responses by the bark beetle Dendroctonus valens to host kairomones. Journal of Chemical Ecology, 19: 18371846.CrossRefGoogle ScholarPubMed
Li, J.S., Chang, G.B., Song, Y.S., Wang, Y.W., and Chang, B.S. 2001. Control project on red turpentine beetle (Dendroctonus valens). Forest Pest Disease, 4: 4144.Google Scholar
Lyon, R.L. 1958. A useful secondary sex character in Dendroctonus bark beetles. The Canadian Entomologist, 10: 382384.Google Scholar
Paine, T.D., and Hanlon, C.C. 1991. Response of Dendroctonus brevicomis and Ips paraconfusus (Coleoptera: Scolytidae) to combinations of synthetic pheromone attractants and the inhibitors verbenone and ipsdienol. Journal of Chemical Ecology, 17: 21632176.CrossRefGoogle Scholar
Rappaport, N.G., Owen, D.R., and Stein, J.D. 2001. Interruption of semiochemical-mediated attraction of Dendroctonus valens (Coleoptera: Scolytidae) and selected nontarget insects by verbenone. Environmental Entomology, 30: 837841.CrossRefGoogle Scholar
Skillen, E.L., Berisford, C.W., Camann, M.A., and Reardon, R.C. 1997. Semiochemicals of forest and shade tree insects in North America and management implications. FHTET-96-15. US Department of Agriculture Forest Service, Morgantown, West Virginia.Google Scholar
Struble, G.R., and Carpelan, L.H. 1941. External sex characters of two important native predators of the mountain pine beetle in sugar pine. Pan-Pacific Entomologist, 17: 153156.Google Scholar
Sun, J.H., Gillette, N.E., Miao, Z.W., Kang, L., Zhang, Z.N., Owen, D.R., and Stein, J.D. 2003. Verbenone interrupts attraction to host volatiles and reduces attack by Dendroctonus valens LeConte (Coleoptera: Scolytidae) on Pinus tabuliformis in China. The Canadian Entomologist, 135: 721732.CrossRefGoogle Scholar
Yan, Z.L., Fang, Y.L., Sun, J.H., and Zhang, Z.N. 2004. Identification and electroantennal olfactory and behavioral tests of hindgut-produced volatiles of the red turpentine beetle, Dendroctonus valens LeConte (Coleoptera: Scolytidae). Acta Entomologica Sinica, 47: 695700.Google Scholar
Zhang, L., Sun, J., and Clarke, S.R. 2006. Effects of verbenone dose and enantiomer on the interruption of response of the red turpentine beetle, Dendroctonus valens LeConte (Coleoptera: Scolytidae), to its kairomones. Environmental Entomology, 35: 655660.CrossRefGoogle Scholar