Date of Award:
5-1966
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Ecology
Department name when degree awarded
Entomology
Committee Chair(s)
Donald W. Davis
Committee
Donald W. Davis
Committee
James T. Bowan
Committee
Richard C. Anderson
Committee
William A. Brindley
Abstract
The alfalfa weevil, Hypera postica (Gyllenhal), was first found in the United States in Salt Lake City, Utah, during 1904 (Titus, 1910b). It spread form this point of original introduction and partially infested Cache Valley by 1912 (Titus, 1913).
The alfalfa weevil has become one of the more important insect problems currently affecting American agriculture. Recently, this problem has attracted national attention because of the development of resistance to insecticides by the alfalfa weevil, the outlawing of certain pesticides for use on forage crops and the rapid spread of the alfalfa weevil to new areas.
With this increased attention, many discrepancies have appeared in different reports of the alfalfa weevil's biology. The results of studies in the eastern United States often do not agree with those of studies which were made in Utah and vicinity during the early part of this century. In order to investigate the discrepancies or differences, and to determine the behavior patterns of the alfalfa weevil in Cache Valley, this study was undertaken. It was conducted from June, 1965 to August, 1966.
The main topics investigated were the adult alfalfa weevil's flight activities, reproduction, daily field activities, seasonal history including diapause, and respiration under controlled conditions.
Checksum
ce3a31c8e782c865430f6573ce4f2f41
Recommended Citation
Southwick, J. Wanless, "Behavior Patterns of the Adult Alfalfa Weevil in Cache Valley, Utah" (1966). All Graduate Theses and Dissertations. 2869.
https://digitalcommons.usu.edu/etd/2869
Included in
Copyright for this work is retained by the student. If you have any questions regarding the inclusion of this work in the Digital Commons, please email us at .