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

FruitsFetzer Vineyards Pioneers Zero Waste
November 21, 2014
Company achieves top sustainability certification by diverting 98% of its waste from the landfill. Read More
GrapesPerfect Storm Hurts New York Concord Grape Growers
November 21, 2014
More than 10,000 tons of juice grapes are abandoned because of too much production and no market. Read More
FruitsClassic Turkey Day Dinner Costing Consumers More This Year
November 20, 2014
Despite increase, a family of 10 can still get stuffed for less than $50. Read More
EquipmentHighlights From EIMA International In Italy [Slideshow]
November 19, 2014
The 2014 edition of the International Agricultural and Gardening Machinery Exhibition (EIMA) boasted a record number of attendees from 124 countries. Read More
FruitsFixing Farm Labor Woes Worth The Extra Effort [Opinion]
November 19, 2014
40th annual Ag Labor Relations Forum encourages outreach and action. Read More
BerriesPackaging Company’s Campaign To Benefit Future Organic Farmers
November 19, 2014
Sambrailo Packaging of Watsonville, CA, has partnered with California Certified Organic Farmers and will donate a portion of the sales of clamshells made from plastic bottles. Read More
Apples & PearsOn The Road With The International Fruit Tree Association Study Tour To Italy Part 1 [Slideshow]
November 19, 2014
Win Cowgill of Rutgers University details a trip through the one of the most concentrated fruit growing areas in the world, the South Tyrol region of Italy. Read More

The Latest

CitrusRamped-Up Predatory Mite Production To Benefit Growers
November 21, 2014
Biologics company Beneficial Insectary now rearing two species in its California facility. Read More
Fruits2014 California Winegrape Harvest: Outstanding
November 21, 2014
It’s the earliest crop of the decade, but still a third in a string of great vintages. Read More
FruitsFetzer Vineyards Pioneers Zero Waste
November 21, 2014
Company achieves top sustainability certification by diverting 98% of its waste from the landfill. Read More
FruitsClassic Turkey Day Dinner Costing Consumers More This Y…
November 20, 2014
Despite increase, a family of 10 can still get stuffed for less than $50. Read More
EquipmentHighlights From EIMA International In Italy [Slideshow]
November 19, 2014
The 2014 edition of the International Agricultural and Gardening Machinery Exhibition (EIMA) boasted a record number of attendees from 124 countries. Read More
FruitsFixing Farm Labor Woes Worth The Extra Effort [Opinion]
November 19, 2014
40th annual Ag Labor Relations Forum encourages outreach and action. Read More
CitrusWomen’s Impact On Agriculture Impressive [Opinion…
November 18, 2014
Florida Agriculture Commissioner Adam Putnam says the long-term sustainability of farming depends on our youth. Read More
Business PlanningFarm Executive Workshop To Build Management, Leadership…
November 17, 2014
Penn State Extension offering unique learning event for those looking to bolster business. Read More
Farm ManagementGrowing Produce Without Risk Management Program Is A Ba…
November 14, 2014
Utilize available insurance tools to ensure opportunities for long-term survival and success. Read More
FruitsWestern Growers Frustrated By Shutdown Of Ports
November 14, 2014
Pacific Maritime Association is accusing union of intentional work slowdown. Read More
Farm ManagementSouth Florida Farmers Going Extra Mile For Everglades C…
November 12, 2014
Growers in one of the most unique and regulated areas in the world have exceeded benchmarks in the quest to restore the ‘River of Grass.’ Read More
FruitsOur Roots Run Deep In The Pacific Northwest [Opinion]
November 11, 2014
A lot is changing in the Pacific Northwest fruit industry. Many of the most important things are not. Read More
FruitsRosBREED2: Disease Resistance Plus Horticultural Qualit…
November 11, 2014
This new project will develop and apply modern DNA-based tools to deliver new cultivars with superior product quality and disease resistance. Read More
FruitsWin Jan Cook Mack’s “Stand By Me Reds”…
November 11, 2014
The original “Stand By Me Reds” painting will be given away to one lucky attendee at this year’s Washington State Horticultural Association meeting. Read More
FruitsProduce People, It’s Time To Pony Up [Opinion]
November 10, 2014
Fruit grower associations need to think long and hard about how they can better serve our country’s youth by marketing their products more aggressively. Read More
FruitsColorado, Oregon Voters Say No To Labeling GMOs
November 6, 2014
Voters echo past results of California and Washington elections. Read More
FruitsNew Invasive Pest Found In Pennsylvania
November 4, 2014
Spotted Lanternfly, native to Asia, destroys grape and fruit trees. Read More
FruitsWashington Winegrape Research Feted
November 3, 2014
Washington State University wins national recognition for water-conservation grape research. Read More