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1 December 2001 Kairomonal Response of Thanasimus undatulus, Enoclerus sphegeus (Coleoptera: Cleridae), and Temnochila chlorodia (Coleoptera: Trogositidae) to Bark Beetle Semiochemicals in Eastern Oregon
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Abstract

The kairomonal responses of Thanasimus undatulus (Say), Enoclerus sphegeus F., and Temnochila chlorodia (Mannerheim) to semiochemicals used by Dendroctonus pseudotsugae Hopkins, D. rufipennis Kirby, D. brevicomis LeConte, D. ponderosae Hopkins, and Ips pini (Say) to locate hosts were quantified in the field during the period of D. pseudotsugae dispersal in the spring and early summer. Traps baited with frontalin plus seudenol caught significantly more T. undatulus than traps baited with any other lure. Only a few E. sphegeus were collected during the study, suggesting that it might use semiochemicals other than those tested in this study to locate its prey. All of the traps baited with lures containing exo-brevicomin caught significantly more T. chlorodia than traps baited with other lures. These results suggest that T. undatulus uses seudenol primarily to locate its prey habitat, and T. chlorodia uses exo-brevicomin for the same purpose. These predators likely feed upon bark beetles that produce these compounds or other bark beetles that are found in the same habitats. A secondary pest of ponderosa pine, Pityogenes carinulatus (LeConte), was attracted in significant numbers to the traps baited with I. pini pheromone components. Traps baited with ipsdienol and lanierone caught significantly more P. carinulatus than traps baited with ipsdienol alone.

Jianlin Zhou, Darrell W. Ross, and Christine G. Niwa "Kairomonal Response of Thanasimus undatulus, Enoclerus sphegeus (Coleoptera: Cleridae), and Temnochila chlorodia (Coleoptera: Trogositidae) to Bark Beetle Semiochemicals in Eastern Oregon," Environmental Entomology 30(6), 993-998, (1 December 2001). https://doi.org/10.1603/0046-225X-30.6.993
Received: 19 January 2001; Accepted: 1 July 2001; Published: 1 December 2001
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