HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (3) Citing Articles via Google Scholar Google Scholar Articles by Park, Y.-L. Articles by Gispert, C. Search for Related Content PubMed Articles by Park, Y.-L. Articles by Gispert, C. Agricola Articles by Park, Y.-L. Articles by Gispert, C.

Spatial Distribution of Pierce’s Disease in the Coachella Valley: Implications for Sampling

¹ Postdoctoral research associate, ² Professor, ³ Staff research associate, Department of Entomology, University of California, Riverside, CA 92521; ⁴ Viticulture Advisor, University of California Cooperative Extension, Indio, CA 92201.

^* Corresponding author [email: thomas.perring{at}ucr.edu; tel: 951 827-4562; fax: 951 827-3086]

A three-year survey was conducted to characterize the spatial distribution patterns of Pierce’s disease (PD) of grapevines in the Coachella Valley (Riverside County, CA). Spatial structures of PD distributions were characterized with geostatistics and spatial analysis with distance indices (SADIE). The survey confirmed 97 diseased grapevines from seven vineyards in the valley, and the diseased vines were localized within the vineyards. Approximately 82% of diseased grapevines were found near two to six consecutive dead, missing, or replanted grapevines in a row. Six vineyards had low (<0.01%) PD incidence, but one vineyard had 3.8% incidence and the diseased vines were spatially aggregated, forming a significant (p < 0.05) patch. The diseased grapevines within the patch also were aggregated and spatially correlated within 26 m. This is the first report of PD distribution in the Coachella Valley, and these findings provide the foundation for development of PD sampling plans.

Key words: Xylella fastidiosa, epidemiology, spatial analysis, geographic information system

This article has been cited by other articles:

				R. K. Krell, T. M. Perring, J. M. Hashim-Buckey, and T. R. Pinckard Susceptibility of Vitis vinifera L. cv. Redglobe and Thompson Seedless to Pierce's Disease Am. J. Enol. Vitic., March 1, 2008; 59(1): 61 - 66. [Abstract] [Full Text] [PDF]

				R. K. Krell, E. A. Boyd, J. E. Nay, Y.-L. Park, and T. M. Perring Mechanical and Insect Transmission of Xylella fastidiosa to Vitis vinifera Am. J. Enol. Vitic., June 1, 2007; 58(2): 211 - 216. [Abstract] [Full Text] [PDF]