Biotypes of the Spotted Alfalfa Aphid in Western United States

Author: NIELSON M. W.   DON HAROLD   SCHONHORST M. H.   LEHMAN W. F.   MARBLE V. L.  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.63, Iss.6, 1970-12, pp. : 1822-1825

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