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PINE OIL PROTECTS LIVING TREES FROM ATTACK BY THREE BARK BEETLE SPECIES, DENDROCTONUS SPP. (COLEOPTERA: SCOLYTIDAE)

  • W. W. Nijholt (a1), L. H. McMullen (a1) and L. Safranyik (a1)

Abstract

Pine oil, a by-product of sulphate wood pulping, protected pheromone-baited, living Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), lodgepole pine (Pinus contorta Dougl.), and spruce (Picea glauca (Moench) Voss - P. engelmannii Parry hybrids) from attack by Douglas-fir beetle (Dendroctonus pseudotsugae Hopk.), mountain pine beetle (D. ponderosa Hopk.), and spruce beetle (D. rufipennis (Kirby)), respectively. Pine oil also protected surrounding trees and reduced attack incidence on Douglas-fir, lodgepole pine, and spruce within at least a 10 m radius. α-Terpineol, one of the constituents of the pine oil mixture, was less effective.

L’huile de pin, un sous-produit dérivé de la pé de bois au sulfate, a protégé le Douglas taxifolié (Pseudotsuga menziesii {Mirb.} Franco), le pin lodgepole (Pinus contorta Dougl.) et des hybrides de l’épinette (Picea glauca {Moench} Voss et P. engelmannii Parry) traités avec des appâts vivants de phéromones contre les attaques du dendroctone du Douglas (Dendroctonus pseudotsuga Hopk.), du dendroctone du pin ponderosa (D. ponderosa Hopk.) et du dendroctone de l’épinette (D. rufipennis {Kirby}), respectivement. De plus, l’huile de pin a protégé les arbres environnants et a réduit l’incidence des attaques sur le Douglas taxifolié, le pin lodgepole et l’épinette à l’intérieur d’un rayon d’au moins 10 mètres. L’α-terpinéol, un des composants de la solution d’huile de pin, a été moins efficace.

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References

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Nijholt, W. W. 1980. Pine oil and oleic acid delay and reduce attacks on logs by ambrosia beetles (Coleoptera: Scolytidae). Can. Ent. 112: 199204.
Nijholt, W. W. and McMullen, L. H.. 1980. Pine oil prevents mountain pine beetle attack on living lodgepole pine trees. Can. Dep. Env. Can. For. Serv. Bi-Mon. Res. Notes 36: 12.
Pitman, G. B. 1973. Further observations on Douglure in a Dendroctonus pseudotsugae management system. Environ. Ent. 2: 109112.
Whitney, H. S., Safranyik, L., Muraro, S. J., and Dyer, E. D. A.. 1978. In defence of the concept of direct control of mountain pine beetle populations in lodgepole pine: some modern approaches. pp. 159164in Kibbee, D. L., Berryman, A. A., Amman, G. D., and Stark, R. W. (Eds.), Theory and practice of mountain pine beetle management in lodgepole pine forests; symposium proc. Forest, Wildlife and Range Experiment Station, University of Idaho, Moscow, U.S.A.

PINE OIL PROTECTS LIVING TREES FROM ATTACK BY THREE BARK BEETLE SPECIES, DENDROCTONUS SPP. (COLEOPTERA: SCOLYTIDAE)

  • W. W. Nijholt (a1), L. H. McMullen (a1) and L. Safranyik (a1)

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