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AN EVALUATION OF THE FUNGAL INOCULATION METHOD OF DETERMINING THE RESISTANCE OF LODGEPOLE PINE TO MOUNTAIN PINE BEETLE (COLEOPTERA: SCOLYTIDAE) ATTACKS

Published online by Cambridge University Press:  31 May 2012

Randall M. Peterman
Affiliation:
Institute of Animal Resource Ecology, University of British Columbia, Vancouver

Abstract

Field tests were made of the fungal inoculation method of Reid et al. which assesses the potential of individual lodgepole pine trees (Pinus contorta Dougl var. latifolia Engelm.) to resist attacks by mountain pine beetle (Dendroctonus ponderosae Hopk.). Four hundred and eighty-four trees were inoculated with one of the beetle’s mutualistic blue-staining fungi (Europhium clavigerum Robinson and Davidson), tree responses were determined, and the potential of each tree to resist D. ponderosae was predicted. Two months later, after mountain pine beetles had attacked some of these same trees, most of the predictions based on the fungal assay system proved to be incorrect. Most of the trees which were attacked and which had been rated potentially resistant did not prevent successful bark beetle reproduction. These results, contrary to those of Shrimpton and Reid, suggest that some improvement is needed in the fungal assay method of assessing resistance of lodgepole pine to mountain pine beetle. Measures of tree resistance based on success of mountain pine beetle reproduction showed no difference in the proportion of non-resistant trees between epidemic and endemic areas.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1977

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References

Berryman, A. A. 1972. Resistance of conifers to invasion by bark beetle-fungus associations. Bioscience 22(10): 598602.CrossRefGoogle Scholar
Keen, F. P. 1943. Ponderosa pine tree classes redefined. J. For. 41: 249253.Google Scholar
Peterman, R. M. 1974. Some aspects of the population dynamics of the mountain pine beetle, Dendroctonus ponderosae, in lodgepole pine forests of British Columbia. Unpub. Ph.D. Thesis, Zoology Dept., Univ. of British Columbia. 208 pp.Google Scholar
Reid, R. W. and Gates, H.. 1970. Effect of temperature and resin on hatch of eggs of the mountain pine beetle (Dendroctonus ponderosae). Can. Ent. 102(5): 617622.CrossRefGoogle Scholar
Reid, R. W. and Shrimpton, D. M.. 1971. Resistant response of lodgepole pine to inoculation with Europhium clavigerum in different months and at different heights on the stem. Can. J. Bot. 49(3): 349351.CrossRefGoogle Scholar
Reid, R. W., Whitney, H. S., and Watson, J. A.. 1967. Reactions of lodgepole pine to attack by Dendroctonus ponderosae Hopkins and blue stain fungi. Can. J. Bot. 45: 11151126.CrossRefGoogle Scholar
Safranyik, L., Shrimpton, D. M., and Whitney, H. S.. 1975. An interpretation of the interaction between lodgepole pine, the mountain pine beetle and its associated blue stain fungi in western Canada. In Management of lodgepole pine ecosystems, edited by Baumgartner, D., Wash. State Extension Serv., Pullman.Google Scholar
Shrimpton, D. M. 1973. Age and size-related response of lodgepole pine to inoculation with Europhium clavigerum. Can. J. Bot. 51(6): 11551160.Google Scholar
Shrimpton, D. M. and Reid, R. W.. 1973. Change in resistance of lodgepole pine to mountain pine beetle between 1965 and 1972. Can. J. For. Res. 3(3): 430432.CrossRefGoogle Scholar
Shrimpton, D. M. and Whitney, H. S.. 1968. Inhibition of growth of blue stain fungi by wood extractives. Can. J. Bot. 46: 757761.CrossRefGoogle Scholar
Smith, R. H. 1963. Toxicity of pine resin vapors to three species of Dendroctonus bark beetles, pp. 189196. In Proc. NATO and NSF Symp. On breeding pest resistant trees. Pergamon Press, New York.Google Scholar
Smith, R. H. 1975. Formula for describing effect of insect and host tree factors on resistance to western pine beetle attack. J. econ. Ent. 68(6): 841844.CrossRefGoogle Scholar
Stoszek, K. J. 1973. A contribution to the biology of the Pseudohylesinus nebulosis (LeConte) (Coleoptera: Scolytidae), especially in relation to the moisture stress of its host, Douglas-fir. Unpub. Ph.D. Thesis, Oregon State Univ. 132 pp.Google Scholar
Vité, J. P. and Wood, D. L.. 1961. A study on the applicability of the measurement of oleoresin exudation pressure in determining susceptibility of second growth ponderosa pine to bark beetle infestation. Contr. Boyce Thompson Inst. Pl. Res. 21: 6778.Google Scholar