Napa Valley grape producer Ron Wicker recalled the impact the EGVM had on his crops.

“In one week, our crop went from isolated clusters of rotting grapes to spreading through the entire vineyard. We lost 11 acres of chardonnay – all 60 tons of fruit.”

Greg Clark, Napa County Agricultural Commissioner, painted the bigger picture.

“In Napa County, wine grape production accounts for 99 percent of annual crop production, or over $656 million in 2013,” Clark said.

“This translates into approximately $14 billion in economic activity for the county. Napa is world-renowned and we have to be good stewards of the crop, wine, and image.”

Faced with this enormous threat the USDA and its partners in California moved quickly. Officials designed an eradication program that would produce results by closely involving growers and the community.

The plan called for growers to carry out pest treatments while state and county partners set traps and lures for detection purposes and reported findings. The USDA also relied on the excellent support of the EGVM Technical Working Group, which met regularly to provide APHIS and its partners with the best science and data to combat EGVM.

“Another key reason for success was the grower liaison role that was created early in the program,” said Nick Condos, Chief of the EGVM Quarantine Program for CDFA’s Plant Health Programs. “The grower liaisons were critical to conveying information to growers and ensuring they understood the voluntary treatments planned.”

“Growers worked closely with the liaisons and cooperated fully with both the quarantine and treatment plans,” Condos continued. “The reason why is because the pest was doing significant damage immediately. We were dealing with a potential game changer for how industry exports and operates.”

The quick response, sound scientific strategy, hard work by growers and industry, and the support of the community have produced fantastic results. The EGVM was eliminated from nine of 11 counties, and more than 80 percent of the acres that were quarantined have been declared free of the moth.

Now, with one moth detected in 2014, success is even closer. Someday soon, we’ll get the news that we’ve accomplished our goal: no more EGVM in California.