A Comparison of the Injury to Alfalfa by the Aphids, Therioaphis maculata and Macrosiphum pisi1

Author: MITTLER TOM E.   SYLVESTER EDWARD S.  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.54, Iss.4, 1961-08, pp. : 615-622

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