Amman, G. D., and J. E. Pasek. 1986. Mountain pine beetle in ponderosa pine: effects of phloem thickness and egg gallery density. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Ogden, Utah, Research Paper INT-367. 7 p.
Amman & Pasek 1986
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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