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Title: PLANT-GWSS INTERACTIONS: PHYSIOLOGICAL AND BIOCHEMICAL MECHANISMS INVOLVED IN HOST PLANT SELECTION WITH PARTICULAR REFERENCE TO LEMON AND ORANGE TREES

Author
item TOSCANO, NICK - UNIV OF CA.RIVERSIDE
item BI, JIAN - UNIV OF CA.RIVERSIDE
item BYRNE, FRANK - UNIV OF CA.RIVERSIDE
item Castle, Steven

Submitted to: CDFA Pierce's Disease Control Program Research Symposium
Publication Type: Proceedings
Publication Acceptance Date: 12/1/2002
Publication Date: 12/30/2002
Citation: TOSCANO, N., BI, J., BYRNE, F., CASTLE, S.J. PLANT-GWSS INTERACTIONS: PHYSIOLOGICAL AND BIOCHEMICAL MECHANISMS INVOLVED IN HOST PLANT SELECTION WITH PARTICULAR REFERENCE TO LEMON AND ORANGE TREES. CDFA PIERCE'S DISEASE CONTROL PROGRAM RESEARCH SYMPOSIUM. 2002. p. 155-156.

Interpretive Summary:

Technical Abstract: The glassy-winged sharpshooter (GWSS) Homalodisca coagulata is an exotic insect in California and is an important vector of Xylellafastidiosa that causes Pierce's disease (PD) in grapes. Citrus is a favored host of GWSS throughout the year, and it .has been well documented from studies of the Temecula PD epidemic that the proximity of citrus groves to vineyards has influenced the incidence and severity of PD in grapes. It is imperative that effective control strategies be implemented to curb the spread of the vector-vital to this would be establishing the host plant range of the GWSS and determining the physiological and biochemical mechanisms for host selection. One of the key factors contributing to the successful establishment of the GWSS in California has been its ability to utilize more breeding habitats and plant hosts than native PD .vectors. Although a comprehensive list of suitable hosts has been identified, comprising 75 plant species in 35 families, little is known about the physiological and biochemical mechanisms involved in host selection of GWSS in California. Elucidation of the physiological and biochemical mechanisms may be usable for developing host plant resistance as a sustainable component of integrated pest management program.