Langstrom, B. E., and C. Hellqvist. 1988a. Scots pine resistance against Tomicus piniperda as related to tree vitality and attack density. Pages 121-133 in T. L. Payne and H. Saarenmaa, Integrated control of scolytid bark beetles. Virginia Polytechnic and State University, Blacksburg, Virginia. 355 p.
Langstrom & Hellqvist 1988
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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