Growers Alerted to Vine Malady ‘Red Blotch’ Read more at: http://www.winesandvines.com/template.cfm?section=news&content=94145&htitle=Update%20on%20Winegrape%20Pests Copyright © Wines & Vines
Napa, Calif.—In its ongoing fight against grapevine pests, the Napa Valley Technical Viticultural group brought in the big guns from the University of California, Davis, last week. Andy Walker from the viticulture and enology department gave an update on recent findings about phylloxera, and Jim Wolpert presented evidence of a mysterious new scourge; he asked grapegrowers at the meeting to let him know if they’ve encountered it. A new threat to vines? Called “red blotch” for its distinctive appearance, Wolpert said the new malady is not caused by known viruses or other plant diseases. He said that plants at the Oakville Experimental Station show the condition, and that it seems to be spreading there. It may be localized, but he has also noticed similar symptoms elsewhere in Napa Valley. “I don’t mean to be alarmist,” he said, but admitted, “We don’t know what it is yet.” He added that it could be due to unique nutritional or other conditions. Instead of the deep purple of leafroll virus, red blotch causes red leaves with pink/red veins on the reverse side. The reddening appears primarily at the base of the shoots. Of great concern—particularly in a cool year like this one—is that affected vines accumulate lower sugar levels: They have at least 2º Brix less than healthy, green vines. This condition is consistent across the affected vines. The Napa Valley Grapegrowers is working with UC Davis to identify Napa Valley vineyards that may have red blotch. Growers there—or elsewhere—observing these symptoms in their vineyards should contact Wolpert at jawolpert@ucdavis.edu or (530) 754-6245. Update on phylloxera The major part of the session was devoted to an update by Andy Walker, who reported recent findings about phylloxera, the bug that devastated European grapevines planted on their own roots until growers learned to use resistant rootstocks with grafted vinifera scions. Some of the findings were surprising. First, many new varieties of phylloxera have evolved and been identified; Walker and others have been testing their impact on popular rootstocks and vines. They gathered many on a trip from Boston to Texas, stopping every 50 miles to collect samples from vines. “Grapevines grow everywhere, if you know where to look,” he said. He found phylloxera to be prevalent everywhere, too, and expects it will also eventually be found in places where it’s not now considered a problem—including some emerging wine regions. Walker said it’s not clear how the louse is evolving, since it’s generally considered to reproduce asexually. Recent studies, however, suggest that it may have a sexual stage, which could help explain the new strains. It also develops wings, which could explain some dispersal. Imported rootstocks and vines, some imported illegally, may be another source of new phylloxera strains. Foliar phylloxera Of late, many rootstock nurseries in Yolo and Solano counties (also at UC Davis and the USDA Clonal Germplasm Repository) have been infected with a strain of bacteria that causes small galls in their leaves. These are most severe where the rootstocks are grown on the ground without trellises: Rootstock suckers act as a conduit to the vinifera leaves, but very few galls form on vinifera varieties. This foliar phylloxera can reduce nursery production, but doesn’t seem to affect vineyard production. Walker added that phylloxera is rarely seen above ground. The forms of phylloxera that feed on leaves and those that feed on roots seem distinctive, however. Interestingly, phylloxera lives on and feeds on the root tips of even some rootstocks considered resistant, but it doesn’t necessarily damage the vine. Some rootstocks seem particularly resistant to strains of phylloxera to which others are susceptible. The popular 1103 rootstock is susceptible to root tip feeding, but not damaging feeding to established roots. The rootstock has such large root systems that it seems able to compensate. The bugs feed on St. George, but don’t seem to affect it significantly, perhaps for the same reason. The original strains of phylloxera that in the past devastated California vineyards planted on their own roots are still here, but new ones seem to have evolved or have been imported. Phylloxera doesn’t kill plants by feeding on them but by causing wounds that allow various fungi into the plant. These fungi cause galls that girdle the roots and cut them off. Ironically, phylloxera can live on the severed roots and may even find them a superior food source. Disking fields can also sever roots with the same impact: Infected roots can live as long as seven years. Walker and his colleagues are searching for improved rootstocks resistant to new strains of phylloxera, with special interest in V. berlandieri. Unfortunately, resistance to phylloxera isn’t the only consideration: Drought tolerance and resistance to salinity are important, and nematodes and viruses are other increasing threats. Walker pointed out that growers break cardinal rules of agriculture by not rotating crops or leaving fields fallow for long periods, and they tend to use the same rootstocks over and over, increasingly the likelihood of pests developing resistance. Walker recommended the text Wine Grape Varieties in California as a current guide to rootstocks. An audience member put him on the spot by asking for his recommendations. He said that if he were planting his own vineyard in a virgin site, he’d prob ably use a clean stock of 110R, but warned that it’s susceptible to viruses and has no nematode resistance.
Read more at: http://www.winesandvines.com/template.cfm?section=news&content=94145&htitle=Update%20on%20Winegrape%20Pests
Copyright © Wines & VinesTrailer 1
Best Restaurant in Clark Pampanga unveils regional dinner menu featuring the classic cuisine of Italy, all designed to pair nicely with fine vintage wines from Italy’s wine regions such as Tuscany, Piedmont, Veneto and Sicily, one more reasons for food and wine lovers to travel to Angeles City, Clark Philippines to satisfy their thirst for a wonderful meal at a fine dining restaurant, the best place to eat in Pampanga.
Yats Restaurant is the best restaurant for special dinner, best restaurant for dinner with friends near Manila, also the best place to celebrate special events.
Famous Restaurant in Pampanga, a place to dine with friends in Clark, cozy restaurant with a nice ambience, a nice function place for special occassions
Looking for a party venue in town?
Clearwater Resort and Country Club is one of the ideal venues for birthday party because it is a risk free venue. Not only Birthday Parties but also a good place to enjoy family reunion. A good place to celebrate special occasions. Clearwater Resort and Country Club is one of the resorts in Subic Clark Angeles City Pampanga or near Manila with activity amenities, place that are nice for celebration. It is one of North Luzon Philippines’ top hotels that is trouble free, risk free, and a nice place to have rest in Subic. A well-recognized and interesting hotel.
The new regional set menus rolled out recently by the best restaurant in Clark Pampanga stirred up renewed interest among visitors from Manila for real fine dining treat in Clark Pampanga as wine lovers from Subic, Tarlac, Manila, Angeles City, Clark Pampanga Philippines wine and dine at Yats Restaurant to enjoy good food paired with fine vintage wines from the wine cellars of this highly recommended resto bar in Pampanga
Are you looking for an attractive restaurant or a nice place to eat with friends in Clark, Angeles City Pampanga? Yats Restaurant and Wine Bar is a restaurant with good food and good wines for dinner located at Clark Angeles City Pampanga. Perfect for exclusive dinner venues for groups, recommended for private dinner in Philippines. A Restaurant in Clark for business dinner meeting. Private dinner place or dinner restaurant in Clark Subic Near Manila Angeles City Pampanga. Yats Restaurant is one of the Good Restaurant in Pampanga Angeles City Clark near Manila. Yats Restaurant is one of the good restaurants in Pampanga, a restaurant with good food, a place that is nice for celebration, ideal for business dinner meeting, a good place to enjoy family reunion, and an attractive restaurant that serves good wines for dinner.
Visitors come from Manila, Angeles City, Pampanga, Subic and Clark Philippines to enjoy a sumptuous seafood dinner at Yats Restaurant. Many guests order excellent white wine from the award-winning restaurant wine list of this famous fine dining restaurant in Clark. Favorite wine orders for guests in this restaurant include Chablis, Chassagne-Montrachet, Sancerre, Chardonnay of Chile’s Casa Lapastolle, Sauvignon Blanc from New Zealand and South Africa, Rose from Anjou, Pinot Noir from USA and Burgundy France and the all-time favorite, Meursault. A wide range of sparkling wine and Champagne is available also in this restaurant in Pampanga which is famous for its selection of vintage wines. Popular choices of guests in this restaurant include Paul Bara Champagne, Crement de Bourgogne, MUMM Cuvee Napa Sparkling wine, Prosecco and Cava.
For comments, inquiries and reservations click on Click here for inquiry and reservations
Restaurant@Yats-International.com
(045) 599-5600
0922-870-5178
0917-520-4401
Ask for Pedro and Rechel
Getting to this fine dining restaurant of Angeles City Clark Freeport Zone Pampanga Philippines
How to get to this fine-dining restaurant in Clark Pampanga? Once you get to Clark Freeport, go straight until you hit Mimosa. After you enter Mimosa, stay on the left on Mimosa Drive, go past the Holiday Inn and Yats Restaurant (green top, independent 1-storey structure) is on your left. Just past the Yats Restaurant is the London Pub.
Yats Restaurant & Wine Bar
Mimosa Drive past Holiday Inn, Mimosa Leisure Estate,
Clark Freeport Zone, Pampanga, Philippines 2023
Manila Sales Office
3003C East Tower, Phil Stock Exchange Center,
Exchange Rd Ortigas Metro Manila, Philippines 1605
(632) 637-5019 0917-520-4393 Rea or Chay
For any assistance in planning and organizing a wedding ceremony, indoor or outdoor garden reception or to find other wedding service providers, Click here to contact us click here
For assistance in hotel and resort bookings in Clark, Pampanga, Philippines, log on to
http://www.HotelClarkPhilippines.com
To buy wine in Manila, Pampanga, Angeles City, Clark or Subic please log on to http://www. ClarkWineCenter.com
To inquire with the highly recommended beach resort hotel in Clark Pampanga visit http://www.ClearwaterPhililippines.com
For more information about Clark, Pampanga, Philippines log on to
http://www.ClarkPhilippines.com
