Biological Control of Olive Scale

Authors

C. E. Kennet
C. B. Huffaker
K. W. Opitz

Authors Affiliations

C. E. Kennett is Laboratory Technician, Division of Biological Control, University of California, Albany; C. B. Huffaker is Professor of Entomology, Division of Biological Control, University of California, Albany; K. W. Opitz is Farm Advisor, Tulare County.

Publication Information

Hilgardia 19(2):12-15. DOI:10.3733/ca.v019n02p12. February 1965.

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Abstract

For nearly thirty years, olive scale, Parlatoria oleae (Colvée), has been the most important insect pest of olives in California. Prior to the introduction of the Persian wasp, Aphytis maculicornis (Masi), in 1952, olive scale was also a most serious pest on deciduous fruits and many species of ornamentals in the Central Valley area. Since then, establishment of the Persian wasp, as well as one other parasite, Coccophagoides sp., has drastically reduced the severity and frequency of scale infestations in California, as reported in this study.