Proximity to citrus influences Pierce's disease in Temecula Valley vineyards

Perring, T; Farrar, C; Blua, M

Proximity to citrus influences Pierce's disease in Temecula Valley vineyards

Authors

Thomas M. Perring
Charles A. Farrar
Matthew J. Blua

Authors Affiliations

T.M. Perring is Professor, Department of Entomology, UC Riverside; C.A. Farrar is Staff Research Associate, Department of Entomology, UC Riverside; M.J. BIun is Assistant Research Entonzologist, Department of Entomology, UC Riverside.

Publication Information

Hilgardia 55(4):13-18. DOI:10.3733/ca.v055n04p13. July 2001.

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Abstract

Pierce's disease has caused extensive losses to grapes in the Temecula Valley. The primary vector of Pierce's disease in the region is the glassy-winged sharpshooter (GWSS), which has been found in large numbers in citrus trees. We examined the role of citrus in the Temecula Valley Pierce's disease epidemic and found that citrus groves have influenced the incidence and severity of Pierce's disease in grapes. Because GWSS inhabit citrus in large numbers, California grape growers should take additional care with vineyards located near citrus groves.

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