Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Ryker, L. C., and K. L. Yandell. 1983. Effect of verbenone on aggregation of Dendroctonus ponderosae Hopkins (Coleoptera, Scolytidae) to synthetic attractant . Zeitschrift fur Angewandte Entomologie 96:452-459.
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