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78 W i n e s & V i n e s s e p t e m b e r 2 0 1 4 ing and work on problems in a timely way. Pierce's disease in California The glassy-winged sharpshooter (GWSS) was identified as a PD vector and evidence of the disease was found in Southern California in the late 1990s. Approximately 840 acres of vineyard were lost due to Pierce's disease during 1998 – 2000, which was roughly 30% of the total vineyard acreage in Temecula, Calif. PD has been a minor problem in Napa Valley for a long time in riparian areas and of concern to some vine- yard managers even before the GWSS introduction to Southern California. As concern about the spread of PD around California increased, the Pierce's Disease Control Program (PDCP) was established in 2000 as a part- nership of government, industry and university personnel. Eliminating the potential host plants for the bacteria was not possible, so the PDCP established programs to control PD by controlling or eliminat- ing the vector transmitting the bacteria. The PDCP has since inspected tens of thousands of loads of plant material from nurseries in southern California for infection by glassy-winged sharpshooters. The PDCP also funded research that devel- oped a treatment program for plants before they are shipped from the nursery. A Rapid Response Program was set up to monitor for glassy-winged sharpshooters in regions not yet infested and to provide a quick and effective response if a new infestation was found. While several researchers have worked to transform cul- tivars genetically so that vines will produce a protein that will stop the spread of Xylella fastidiosa once it is introduced, Walker took a different tack at UC Davis and used breeding techniques to gradually develop vinifera cultivars that are re- sistant to PD. In a talk during the Challenging Environments Symposium at the national meeting of the American So- ciety for Enology & Viticulture in June, Walker gave an over- view of the work he has done to develop seedlings that are 97% vinifera but resistant to the bacteria causing PD. (See previous coverage in Wines & Vines including "PD-Resistant Vines Available in 2015?" at winesandvines.com.) Multiple vine trials have been planted in Davis and Yountville, Calif., and wines have been made from most of the selections. Three PD-resis- WineEast Grapegrowing 5739 NATURAL BRIDGE AVE. ST. LOUIS, MISSOURI 63120-1696 TELEPHONE (314) 381-2828 FAX (314) 381-5908 1-888-WE-R-RACKS (1-888-937-7225) www.titanrack.com email: komoran@titanrack.com TITAN-RACK A DIVISION OF TITAN TUBE FABRICATORS, INC. Double Bar Four Barrel Rack Double Bar Two Barrel Rack Half Rack Removable Center Rack • Central Location SAVES MONEY in Freight • Move more Barrels, cut handling time • Utilize air space, save floor space • Prevent product damage • Powder coat paint Over 30 years of experience in solving material handling needs Why Pay Freight From California? Let Our Central Location, ST. LOUIS, Save You BIG Money Portable Steel Barrel Racks From St. Louis TitanRack_Nov09.qxd 9/29/09 10:50 AM Page 1 Wine Packaging by Packaging Designed & Manufactured by a Wine Maker, for a Wine Maker 4138 Vineyard Road Stewartstown, PA 17363 Tel: 800-292-3370 Fax: 717-993-9460 Phone: 717-993-2431 Naylor Wine Cellars is a lifetime member of Wine America, Pennsylvania Wine Assoc, Ohio Wine Producers and NY Wine & Grape Foundation WPN is a premier supplier to over 2,000 wineries and wine & spirits shops. Our auto bottom carriers & shippers are the perfect sturdy solution for your retail & online sales! www.NaylorPackaging.com Features & Benefits - Extra sturdy construction for the most protection - Quick & easy to pack & set up - Folds to conform to many different bottles - Trademarked design - Bio-degradable - Quick delivery from our stock - Lies flat for easy storage - Takes up half the space of comparative packages - Tested & approved by UPS and Federal Express as a preferred method of shipping bottles - Custom imprinting and packaging is available to display your logo, enhancing your brand image Pierce's disease shows potential to spread into the east and Midwest. JIM KAMAS / TExAS A&M AGRILIFE ExTENSION SERVICE DAILY WINE INDUSTRY NEWS winesandvines.com Traditional Pierce's Disease Range Expanded Pierce's Disease Range