EGVM (Grapevine Moth) Spreads in California

Wines and Vines.  10 August 2010 — San Joaquin County is the latest winegrape-growing county in California to detect European grapevine moth (EGVM), a virulent pest that threatens the state’s vineyards. In addition, steps are being taken in Yolo County to contain the pest as well.

Two of the Lobesia botrana moths were trapped by San Joaquin County Agricultural Commissioner staff on Aug. 2 and 4 in a vineyard east of Lodi and the United States Department of Agriculture (USDA) and the California Department of Food and Agriculture (CDFA) have confirmed the sighting.

The moth is an invasive pest new to California that can cause substantial damage to vineyards and is under intensive eradication in other parts of the state. Napa and Sonoma County growers, wineries and haulers are already under quarantine regulations that require special efforts to keep the pests from spreading beyond their present limited areas, and growers are spraying and using mating disruption to reduce the impact.

Quarantine likely in Lodi
Finding two moths in the same area in Lodi will likely trigger a similar agricultural quarantine to prevent spread of the EGVM. Typically, the EGVM quarantine area encompasses a 5-mile radius around the site where the moths are found, usually in sticky traps baited with moth hormones.

In this case, the boundary will be in a circle, with the circumference drawn approximately from Peltier Road to the north, Jack Tone Road on the east, Morada Lane to the south and Davis Road in the west.

Growers will be allowed to move their grapes, but not until they enter into a compliance agreement with the agricultural commissioner’s office prior to harvest, said San Joaquin County ag commissioner Scott Hudson.  read more

4 thoughts on “EGVM (Grapevine Moth) Spreads in California”

  1. Great post and website, and I hope you get a lot accomplished in Niger, Africa this September. I understand over 80% of the people there are going hungry right now… Keep us posted!

  2. Very well put together article and site, I can really see this site taking off even more, great job

Comments are closed.