Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Byers, J. 1993b. Orientation of bark beetles Pityogenes chalcographus and Ips typographus to pheromone-baited puddle traps placed in grids: A new trap for control of scolytids . Journal of Chemical Ecology 19:2297-2316.