Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Goheen, D. J., F. W. Cobb, D. L. Wood, and D. L. Rowney. 1985. Visitation frequencies of some insect species on ceratocystis-wageneri Infected and apparently healthy Ponderosa Pines . Canadian Entomologist 117:1535-1543.
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