research article
Ecology and integrated control of spider mites in San Joaquin vineyards
authors
D. L. Flaherty, University of California
C. D. Lynn
F. L. Jensen
D. A. Luvisi
publication information
California Agriculture 23(4):11-11. DOI: 10.3733/ca.v023n04p11.
Summary
Summary Not Available – First paragraph follows:
THE SPIDER MITES, Tetranychus pacificus McGregor and Eotetranychus willamettei (Ewing) have increased to abundance in vineyards since World War II. In at least some cases it appears that organic pesticides have caused an imbalance in the occurrence of spider mites and their natural enemies, particularly by inhibiting action by Metaseiulus occidentalis (Nesbitt) —a predatory mite. Chemicals may cause imbalance in vineyards by differential kill of predators and prey, by conferring an advantage to the prey (by stimulating reproduction), or by a combination of the two.
author affiliations
D. L. Flaherty is Assistant Research Entomologist, Division of Biological Control, University of California, Berkeley; C. D. Lynn is Farm Advisors in Fresno, Tulare, and Kern counties respectively. F. L. Jensen is Farm Advisors in Fresno, Tulare, and Kern counties respectively. D. A. Luvisi is Farm Advisors in Fresno, Tulare, and Kern counties respectively.
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