Author： COTHRAN W. R. CHRISTENSEN J. B. SUMMERS C. G.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.65, Iss.3, 1972-05, pp. : 769-771
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Abstract
The recent extensive buildup of damaging populations of the Egyptian alfalfa weevil, Hypera brunneipennis (Boheman), in the prime alfalfa-growing areas of California's Central Valley poses a major threat to the crop and ranks the insect as the primary pest of alfalfa in the state. The associated increasing magnitude of losses attributable to H. brunneipennis (van den Bosch and Marble 1971) involves a complex of reasons which relate directly to the present limited state of knowledge regarding certain key aspects of its ecology (Cothran and Summers 1971). Among the most important of these is its migratory behavior.
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