Birch, M. C., R. W. Bushing, T. D. Paine, S. L. Clement, and P. D. Smith. 1977. Pheromone traps to supress populations of the smaller European elm bark beetle. California Agriculture 31:4-6.
Birch et al. 1977
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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