Parasites of the frosted scale: Tests in northern California show natural enemies of scale control pest when not depleted by sprays

Michelbacher, A; Swift, J

Parasites of the frosted scale: Tests in northern California show natural enemies of scale control pest when not depleted by sprays

Authors

A. E. Michelbacher
John E. Swift

Authors Affiliations

A. E. Michelbacher is Associate Professor of Entomology, University of California, Berkeley; John E. Swift is Specialist in Entomology, University of California, Berkeley.

Publication Information

Hilgardia 8(4):9-10. DOI:10.3733/ca.v008n04p9. April 1954.

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Abstract

The frosted scale–Lecanium pruinosum Coquillett–occurs in most of the walnut orchards in northern California.

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