Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Control of pear psylla: With oils and oil-pyrethrins

Authors

H. F. Madsen
P. H. Westigard

Authors Affiliations

H. F. Madsen is Associate Professor and Associate Entomologist in the Experiment Station, University of California, Berkeley;; P. H. Westigard is Assistant Entomologist, Oregon State University, formerly Junior Research Entomologist in the Experiment Station, University of California, Berkeley.

Publication Information

Hilgardia 17(1):9-10. DOI:10.3733/ca.v017n01p9. January 1963.

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Abstract

Oil sprays show promise for pear psylla control, but the addition of pyrethrins offers little advantage.

Madsen H, Westigard P. 1963. Control of pear psylla: With oils and oil-pyrethrins. Hilgardia 17(1):9-10. DOI:10.3733/ca.v017n01p9
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