File:1957. Research Entomologist Jim Bean (right) checking olfactory response of adult spruce budworms to various hosts using olfactometer. Kawishiwi Laboratory, Kawishiwi Ranger District, Superior National Forest, Minnesota. (44363474120).png
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1957._Research_Entomologist_Jim_Bean_(right)_checking_olfactory_response_of_adult_spruce_budworms_to_various_hosts_using_olfactometer._Kawishiwi_Laboratory,_Kawishiwi_Ranger_District,_Superior_National_Forest,_Minnesota._(44363474120).png (600 × 446 pixels, file size: 210 KB, MIME type: image/png)