Information for Growers and Wineries
Information for Homeowners
For 2013, growers should make applications of the recommended insecticides for the first two EGVM generations at vineyards located within 500 meters of 2011 and 2012 EGVM finds. Mating disruption will only be deployed in select vineyards within 500 meters of 2012 finds. Grower Liaison Martin Mochizuki has attempted to contact all growers in the affected areas. If you are not sure if your property is in the affected area, contact Martin at 707-975-2133 or firstname.lastname@example.org. If applications are timed properly, conventional growers would only need to make one application for each of the two generations. For organic growers, a total of four to five applications for the two generations will be necessary due to shorter residual of the organic insecticides. Growers are advised to alternate between products to minimize risk of insecticide resistance. Timing for the first application should be just prior to the beginning of bloom. Martin Mochizuki and UC Viticultural Farm Advisor Monica Cooper will communicate with growers via their e-mail blasts regarding timing for applications for the second generation based on the UC degree day model. For valuable information on EGVM and to subscribe to the Napa UC Cooperative Extension EGVM newsletter, go to the following link: http://cenapa.ucanr.edu/Napa_County_Programs/Viticulture/European_Grapevine_Moth/
Napa County is still operating under the EGVM quarantine. All EGVM quarantine compliance agreement documents are still in force. Sanitation of equipment remains an important component of controlling the spread of EGVM throughout the year. Equipment used for vineyard removal and management, and for harvest must be cleaned of all host material and debris prior to leaving the growing premise. No stakes or end posts may be removed from the vineyard unless: they have been stored on the property no less than 60 feet from any EGVM host material for a minimum of nine months prior to relocation, or they are going directly to a landfill within the quarantine area. Growers must contact the Agricultural Commissioner’s Office well in advance of any anticipated shipment of grapes out of the state or country as extra trapping and inspections are required. Much of the information presented here is outlined in a 2013 EGVM information summary sheet.
Visit the Hungry Pests YouTube channel to watch informative videos about European Grapevine Moth and other destructive pests.
Hear KVON's Jeff Schechtman and Agricultural Commissioner Dave Whitmer discuss vineyard pests like European Grapevine Moth on this radio interview! Listen here