Washington State Department of Agriculture To Survey For Presence Of Destructive Moths

Washington State Department of Agriculture, with cooperation from the USDA, will survey the state’s major winegrape growing regions for four species of destructive moths.

Approximately 1,000 traps will be set for European Grapevine Moth, European Grape Berry Moth, Grape Tortrix, and Grapevine Tortrix. These traps will be placed throughout the state’s 13 major winegrape regions between late May and July, according to Mike Klaus, WSDA entomologist and survey coordinator for Eastern Washington.

Trappers will focus on vineyards and will also target backyard grape vines near potential pathways of pest introduction. Klaus said the traps will be checked every two to four weeks during the summer and then taken down in September. Similar WSDA surveys conducted the past two years yielded no detection of the pests.

“Our trappers will have state identification and welcome any questions landowners may have,” Klaus added. “We’ll be trapping from the San Juan Islands to the Columbia Gorge to Okanogan, but our emphasis will be in Yakima, Benton, Franklin, and Walla Walla counties.”

The European grapevine moth was found for the first time in the U.S. in 2009 in Napa Valley, a serious threat to California’s wine industry. After its initial detection in Napa Valley, the pest has been found in several other counties. Some California growing regions are under quarantine.

In 2013, the USDA’s Animal & Plant Health Inspection Service (APHIS) released $16.9 million in emergency funding to prevent the spread of European grapevine moth in the Golden State.

If any of the four species of targeted moths are found in the Evergreen State this summer, state agriculture officials may place more traps in the area in an attempt to find the center of the infestation. Officials say they would also consult immediately with state and federal agencies to determine the best course of action, as well as reach out to industry stakeholders.

“We greatly appreciate the focus of the grape pest survey from WSDA,” said Vicky Scharlau, executive director, Washington Association of Wine Grape Growers. “The damage potential from these pests, and all pests and diseases, is a huge concern to us and we have to stay vigilant or pay the price.”

Klaus emphasized that none of the moth species have been detected in Washington. “The goal of the survey is to protect Washington’s grape industry by preventing the establishment of these invasive moths,” Klaus said. “We want to detect them as early as possible if any do arrive. If any of these grape pests were to become established here, they could pose a serious threat to our grape and wine industries.”

WSDA will also resume a limited survey for grape phylloxera, an aphid-like pest that attacks grape roots. Washington State University and WSDA have detected grape phylloxera at a few locations in Eastern Washington vineyards and backyard grape plantings as recently as 2002.

Grape phylloxera is considered to be the most serious grape pest worldwide, especially on vinifera grapes. California growers have experienced significant losses, sometimes requiring the removal and replanting of entire vineyards. WSDA has cooperated with WSU several times over the last 25 years in surveys for grape phylloxera. However, in Washington, official surveys for the pest have not been conducted since 2002. The control of grape phylloxera is costly and is only achieved after many pesticide applications over several years. Planting resistant rootstocks has been the primary control measure. However, new biotypes in California are known to attack previously resistant rootstocks. Washington vineyards may be vulnerable since they are generally planted on their own nonresistant roots.

In the mid-1990s, a new pest of grapes, the vine mealybug, was found in California. WSUentomologist Doug Walsh has been conducting surveys for vine mealybug along with research on another established mealybug species, the grape mealybug. To date, vine mealybug has not been detected in Washington.

WSDA has a quarantine in effect for both grape phylloxera and vine mealybug to prevent these threats to the Washington winegrape industry from spreading.

Source: Washington Association of Wine Grape Growers news release

Topics: , , , ,

Leave a Reply

Fruits Stories
GrapesDrought’s Impact On California Winegrapes
July 30, 2015
The impact is minimal this year, but the future is uncertain if the drought continues. Read More
Apples & PearsEPA Approves New 1-MCP Technology
July 30, 2015
EPA approved Fysium, a new 1-MCP product from Pace International LLC. Considered new technology, this product is produced on-site by Read More
FruitsTodd Snyder Named President And CEO Of C&O Nursery
July 30, 2015
Todd Snyder, the third generation of Snyders to run C&O Nursery, was recently named president and CEO of the family Read More
CitrusWestern Growers Praises Introduction Of California Emergency Drought Relief Act
July 30, 2015
Legislation contains short- and long-term provisions to deal with the historic drought. Read More
Farm ManagementFour Great Pricing Tips From U-Pick Experts
July 30, 2015
Although each of the growers I talked to has his or her own take on a pricing structure, they all Read More
BerriesUC-Davis Responds To California Auditor’s Recommended Improvements To Strawberry Program
July 30, 2015
Following a six-month review of the University of California (UC)-Davis Strawberry breeding program, the California state auditor’s office has released Read More
Farm ManagementHow To Find Your Perfect U-Pick Pricing Structure
July 30, 2015
If there’s one mission impossible for pick-your-own operations, it might just be how to set a pricing structure. Odds are you’ve Read More
The Latest
woman smashing an alarm clock with a hammer
CitrusDon’t Become A Time Crunch Casualty
July 31, 2015
Finding the balance between work life and home life is easier said than done for GenNext Growers. Read More
FruitsTodd Snyder Named President And CEO Of C&O Nursery
July 30, 2015
Todd Snyder, the third generation of Snyders to run C&O Nursery, was recently named president and CEO of the family Read More
CitrusWestern Growers Praises Introduction Of California Emer…
July 30, 2015
Legislation contains short- and long-term provisions to deal with the historic drought. Read More
Farm ManagementFour Great Pricing Tips From U-Pick Experts
July 30, 2015
Although each of the growers I talked to has his or her own take on a pricing structure, they all Read More
Farm ManagementHow To Find Your Perfect U-Pick Pricing Structure
July 30, 2015
If there’s one mission impossible for pick-your-own operations, it might just be how to set a pricing structure. Odds are you’ve Read More
CitrusGroup Food Safety Audits May Help Prepare You For The P…
July 29, 2015
Group food safety audits, slated to be available next spring, may save small- to mid-size growers time and money. Read More
Farm ManagementUnited Farm Workers Turns Up Heat On California Growers
July 29, 2015
With temperatures soaring into the triple digits, union organizers are focusing on heat illness regulations. Read More
Disease ControlNew Disease Control Tools For Fruit And Nut Growers
July 29, 2015
Apple scab is a big problem for growers in the Midwest and East. But, a new fungicide boasts efficacy against Read More
FruitsFruit Grower Tour Held Next Week In New York
July 28, 2015
Registration begins at 9:30 a.m. on Aug. 5 for the 17th annual Wayne County Fruit Grower Tour presented by agr.assistance. Read More
Bill Stoneman
Crop ProtectionFormer BPIA Head Relishes Challenge Of New Consulting R…
July 28, 2015
JET Harvest Solutions taps Bill Stoneman for his bounty of biocontrol experience. Read More
Washington Capitol building
CitrusHouse Passes Bill To Block State GMO Food Labeling Mand…
July 27, 2015
The legislation would offer a federal standard for voluntary labeling of foods containing GMOs.   Read More
Citrus2 Dozen Florida Nurseries Vying For Coveted Cannabis Gr…
July 27, 2015
With only five spots available to produce the low-THC ‘Charlotte’s Web’ strain, tedious review process is in full swing. Read More
CitrusUSDA Expands Crop Insurance Options For Fruit And Nut G…
July 24, 2015
The USDA announced the expansion of crop insurance to provide additional options for fruit and nut producers. The Supplemental Coverage Read More
FFVA 2015 Annual Convention logo
CitrusFlorida Fruit & Vegetable Association Annual Conven…
July 23, 2015
Association's 72nd gathering to feature high-profile speakers, up-to-the-minute Issues Forums, and some fun to mix in with the business of the day. Read More
Crop ProtectionRegional Integrated Pest Management Grants Reduced Pest…
July 22, 2015
The program created tools and training information designed for Western growers. Read More
CitrusInternational Report Confirms 2014 As Earth’s Warmest Y…
July 21, 2015
Scientific compilation notes climate markers continue to show global warming trend. Read More
FruitsWashington Supreme Court Rules Workers Paid Piece-Rate …
July 21, 2015
  According to a news story in the Yakima News Herald, the state Supreme Court of Washington unanimously ruled that Read More
non-gmo label leafy greens
CitrusGMO Labeling Battle Moves To House Floor
July 21, 2015
The Safe and Accurate Food Labeling Act of 2015 was passed by the Agriculture Committee last week and will head Read More