Item USU A-0845
Container
Contains 1 Result:
Dr. George F. Knowlton, at the USAC Agricultural Experiment Station, holding up two drawings of pea aphids, a common pest of pea, alfalfa and of certain clovers, 1950s
Item — item: USU A-0845
Scope and Contents
Aphids spread virus diseases to celery, potatoes, beans, and various other farm crops. These tiny pests were investigated by Dr. George F. Knowlton for a number of years. He spent many years in research, teaching, and extension activities dealing with the insect pests of crops and livestock in the Intermountain area.
Dates:
1950s