Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Biological control: Natural enemies of aphid in California sought in European, Mid-East countries

Author

C.P. Clausen

Author Affiliations

C. P. Clausen is Chairman, Department of Biological Control, University of California, Riverside.

Publication Information

Hilgardia 9(7):4-4. DOI:10.3733/ca.v009n07p4b. July 1955.

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Abstract

Field observations on the yellow clover aphid were made in southern California during the past year to determine the status of the predators that attack the aphid and the presence or absence of internal parasites. No internal parasites were found.

Clausen C. 1955. Biological control: Natural enemies of aphid in California sought in European, Mid-East countries. Hilgardia 9(7):4-4. DOI:10.3733/ca.v009n07p4b
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