Imported parasites established: Natural enemies of the spotted alfalfa aphid brought from the Middle East in 1955–56 now established in California

van den Bosch, R; Schlinger, E; Dietrick, E

Imported parasites established: Natural enemies of the spotted alfalfa aphid brought from the Middle East in 1955–56 now established in California

Authors

Robert van den Bosch
E. I. Schlinger
E. J. Dietrick

Authors Affiliations

Robert van den Bosch is Assistant Entomologist in Biological Control, University of California, Riverside; E. I. Schlinger is Acting Junior Entomologist in Biological Control, University of California, Riverside; E. J. Dietrick is Principal Laboratory Technician in Biological Control, University of California, Riverside.

Publication Information

Hilgardia 11(7):11-12. DOI:10.3733/ca.v011n07p11. July 1957.

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Abstract

Three imported wasp species—parasites of the spotted alfalfa aphid—have survived their first winter in southern California alfalfa fields and have become abundant in several localities.

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