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SEX PHEROMONE OF CONOPHTHORUS PONDEROSAE (COLEOPTERA: SCOLYTIDAE) IN A COASTAL STAND OF WESTERN WHITE PINE (PINACEAE)

  • Daniel R. Miller (a1), Harold D. Pierce (a2), Peter de Groot (a3), Nicole Jeans-Williams (a4), Robb Bennett (a5) and John H. Borden (a4)...

Extract

An isolated stand of western white pine, Pinus monticola Dougl. ex D. Don, on Texada Island (49°40′N, 124°10′W), British Columbia, is extremely valuable as a seed-production area for progeny resistant to white pine blister rust, Cronartium ribicola J.C. Fisch. (Cronartiaceae). During the past 5 years, cone beetles, Conophthorus ponderosae Hopkins (= C. monticolae), have severely limited crops of western white pine seed from the stand. Standard management options for cone beetles in seed orchards are not possible on Texada Island. A control program in wild stands such as the one on Texada Island requires alternate tactics such as a semiochemical-based trapping program. Females of the related species, Conophthorus coniperda (Schwarz) and Conophthorus resinosae Hopkins, produce (+)-pityol, (2R,5S)-2-(1-hydroxyl-l-methylethyl)-5-methyl-tetrahydrofurana, sex pheromone that attracts males of both species (Birgersson et al. 1995; Pierce et al. 1995). The host compound a-pinene significantly increases attraction of male C. coniperda to pityol-baited traps in stands of eastern white pine, Pinus strobus L. (de Groot et al. 1998).

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Corresponding author

1 Author to whom all correspondence should be sent at the following address: Forestry Sciences Laboratory, Southern Research Station, USDA Forest Service, 230 Green Street, Athens, Georgia 30602-2044, United States (E-mail: dmiller/srs_athens@fs.fed.us).

References

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Birgersson, G., DeBarr, G.L., de Groot, P., Dalusky, M.J., Pierce, H.D. Jr, Borden, J.H., Meyer, H., Franke, W., Espelie, K.E., Berisford, C.W. 1995. Pheromones in white pine cone beetle, Conophthorus coniperda (Schwartz) (Coleoptera: Scolytidae). Journal of Chemical Ecology 21: 143–67
de Groot, P., DeBarr, G.L. 1999. Factors affecting capture of the white pine cone beetle, Conophthorus coniperda Schwarz (Col., Scolytidae) in pheromone traps. Journal of Applied Entomology 122: 281–6
de Groot, P., DeBarr, G.L., Birgersson, G. 1998. Field bioassays of synthetic pheromones and host monoterpenes for Conophthorus coniperda (Coleoptera: Scolytidae). Environmental Entomology 27: 382–7
Pierce, H.D. Jr, de Groot, P., Borden, J.H., Ramaswamy, S., Oehlschlager, A.C. 1995. Pheromones in red pine cone beetle, Conophthorus resinosae Hopkins, and its synonym, C. banksianae McPherson (Coleoptera: Scolytidae). Journal of Chemical Ecology 21: 169–85

SEX PHEROMONE OF CONOPHTHORUS PONDEROSAE (COLEOPTERA: SCOLYTIDAE) IN A COASTAL STAND OF WESTERN WHITE PINE (PINACEAE)

  • Daniel R. Miller (a1), Harold D. Pierce (a2), Peter de Groot (a3), Nicole Jeans-Williams (a4), Robb Bennett (a5) and John H. Borden (a4)...

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