European Grapevine Moth Quarantine
Grapes from EGVM Area free to move from San Joaquin County
Processors and handlers of grapes from areas regulated for EGVM still need compliance agreements.
For maps of areas still under quarantine,
Two European grapevine moths (EGVM), Lobesia botrana were trapped by San Joaquin County Agricultural Commissioner staff on August 2 and 4, 2010 in a vineyard east of Lodi. EGVM is an invasive quarantine pest new to California that can cause substantial damage to vineyards and is under intensive eradication in other parts of the state.
Finding two EGVM moths in the same area trigger a federal agricultural quarantine to prevent spread of EGVM to non-infested areas. As a result, an EGVM quarantine zone was established in the Lodi area. The EGVM quarantine area encompassed a five mile radius around the find site.
Growers in the quarantine area needed to be under compliance agreement with the Agricultural Commissioner's Office before the grapes could be harvested and moved from their vineyards. For now, harvesters, trucking companies and wineries handling grapes in the current quarantine area must still be under compliance agreement. For a map of the current EGVM quarantine area, click here. For information on obtaining compliance agreements contact the Agricultural Commissioner's Office (209) 953-6000 (Stockton) or (209) 331-7287 (Lodi).
European Grapevine Moth, Lobesia botrana, is a pest of economic importance in vineyards throughout much of Europe, causing damage to flowers and developing grapes. Every generation of the moth can be found in vineyards, however the second and third generations are the most damaging. Larvae in latter generations can seriously affect the mature grape berry harvest directly through larval feeding and indirectly by predisposing the crop to Botrytis bunch rot. The EGVM larvae found in an Oakville-area vineyard in September 2009 is the first known infestation in the United States. Since then, moths were found in Mendocino, Sonoma, Solano, Fresno, Merced, San Joaquin, Nevada and Santa Cruz counties. EGVM has been eradicated in San Joaquin, Fresno, Merced and Mendocino Counties.
A link for more information on EGVM
| EGVM Adult moth about 1/4 inch long
|| EGVM larvae showing variable color |
Older stages are darker in color
Up to 1/2 inch long