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WineEast Blanc Du Bois is the grape berry moth, which is managed with one or two insecti- cide applications per season. It should also be clarified here that although Blanc Du Bois is tolerant of PD, it acts as a host of the bacterium and will show leaf scorch symptoms typical of PD if vines become stressed. Work by the Uni- versity of Houston-Downtown showed that in regions of high PD pressure, bacterial levels in Blanc Du Bois were low overall, with higher bacterial levels localized on a few shoots.2 The population of bacteria in Blanc Du Bois appears to decrease over the winter and may be partially removed during dormant pruning.2 When PD symp- toms are expressed by Blanc Du Bois, the symptomatic vines will continue to grow normally the following season, and thus insecticide treatments to prevent PD are not necessary. Because Blanc Du Bois and most other PD-tolerant varieties can act as symptomless hosts of Pierce's disease, it is not recommended to plant this variety alongside susceptible grape varieties. Blanc Du Bois in the winery The driving force behind the increased planting of Blanc Du Bois in the southeast can be credited in part to the improvements in wine quality for this variety in the past decade. Wineries in Florida, Louisiana and Grapegrowing Texas have featured Blanc Du Bois as a varietal wine as well as a blending grape since its release in 1987, and local market recognition for the variety has grown over the years. The trend for cooler and longer primary fermentation has resulted in wines described as having heightened aromatics on the nose and a crisp, refreshing citrus to mineral finish on the palate. In 2009, Dr. Charles Sims at the Univer- sity of Florida conducted a sensory evalua- tion of more than 20 Blanc Du Bois wines from commercial wineries in the southeast to determine the varietal's dominant aroma and flavor profiles. The most common positive aroma and flavor profiles recorded All Natural Cork Closures Fresh Corks Directly From Portugal 4th Generation Family Cork Producer Free Branding Free Shipping Free is Better Ask about our Progressive Discounts Phone (203) 681-7743 Cell (860) 335-0667 email: reliablecork@gmail.com www.reliablecorksolutions.com e m – Mist Sprayers – s American Made Low Maintenance High Performance Excellent for spraying: VINEYARDS, vegetables, orchards, nurseries, Christmas trees, mosquitoes, cattle, chicken houses, etc. For free brochure contact: Swihart Sales Co. 7240 County Road AA, Quinter, KS 67752 78 Wines & Vines FeBRUARY 2012 Motor Models available We offer a complete line of low volume mist blowers. References available in your area 785-754-3513 or 800-864-4595 www.swihart-sales.com Phone: 716/672-8493 • Fax: 716/679-3442 e-mail: sue.rak@doubleavineyards.com website: www.doubleavineyards.com S a p l C n o a y