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

Apples & PearsCanneries Hope To Encourage Growers To Grow Pears For Processing
September 15, 2014
Higher wholesale prices offered as means to boost canning pear acres. Read More
BerriesBotrytis Gray Mold Pressure Increasing With Humid Weather
September 15, 2014
Michigan State University researcher offers tips to reduce the spread of spores. Read More
Fruits5 Mistakes You May Be Making With Your Orchard’s Website
September 15, 2014
These deadly sins may be hurting your customers’ experience — and costing you money. Read More
FruitsSuccess And The Not-Top-100 Grower [Opinion]
September 15, 2014
Innovation isn't only happening at the top. Some of the most interesting ideas in the fruit industry are being executed by small growers. Read More
Apples & PearsAmerican and Western Fruit Grower’s 2014 Top Apple And Pear Fruit Growers
September 13, 2014
The nations’s largest growers reflect how technology, innovations, and promotion help make their businesses run more efficiently. Read More
FruitsAmerican and Western Fruit Grower’s 2014 Top 100 Growers
September 13, 2014
The nations’s largest growers reflect how technology, innovations, and promotion help make their businesses run more efficiently. Read More
Stone FruitAmerican and Western Fruit Grower’s 2014 Top Stone Fruit Growers
September 13, 2014
This year’s Top 100 Report features the 25 largest stone fruit growers in the country. Read More

The Latest

FruitsDeadline Nearing For Noninsured Crop Disaster Assistanc…
September 15, 2014
Fruit growers who suffered losses due to frost or freeze in 2012 could be eligible for assistance through USDA’S Farm Service Agency. Read More
Fruits5 Mistakes You May Be Making With Your Orchard’s …
September 15, 2014
These deadly sins may be hurting your customers’ experience — and costing you money. Read More
FruitsSuccess And The Not-Top-100 Grower [Opinion]
September 15, 2014
Innovation isn't only happening at the top. Some of the most interesting ideas in the fruit industry are being executed by small growers. Read More
FruitsAmerican and Western Fruit Grower’s 2014 Top 100 …
September 13, 2014
The nations’s largest growers reflect how technology, innovations, and promotion help make their businesses run more efficiently. Read More
FruitsSolve This Grower’s New Planting Problem
September 12, 2014
American Fruit Grower’s advice forum focuses on solving your problems and issues that arise in business and the growing season. Read More
FruitsUSDA Needs Your Help In Tracking Brown Marmorated Stink…
September 11, 2014
Researchers seeking voluntary information to track how pest overwinters. Read More
Crop ProtectionGiant Snail Threat Spreading In South Florida
September 10, 2014
Dangerous invasive pests found well outside Miami-area hot zone. Read More
EquipmentJohn Deere Announces Changes To 5M Utility Tractors
September 9, 2014
Enhanced operator experience, serviceability, performance, and comfort, are among the new features. Read More
Crop ProtectionStockton’s Timorex Gold Biofungicide Receives EPA Reg…
September 9, 2014
This broad spectrum fungicide can be used in rotation or in a tank mix. Read More
FruitsSmaller Stores Taking Greater Market Share Of Produce P…
September 9, 2014
Drug, dollar, and convenience stores sales increased 7.1%, 2.0%, and 1.4%, respectively, while perishables at grocery stores decreased by 2.6% in 2013. Read More
FruitsStrategies To Prevent Secondary Pests Following Sprays …
September 9, 2014
Penn State University researcher offers guidelines and control strategies for minimizing the impacts on mites for the next season. Read More
CitrusFMC Acquires Cheminova
September 9, 2014
Transaction expected to close in early 2015. Read More
CitrusSouth Florida Wet Season Receives Slight Respite
September 9, 2014
Reports indicate most areas around the region received below average rainfall during August. Read More
FruitsHigh Demand Drives Tree Fruit Rootstock Shortage
September 8, 2014
Nurseries struggling to balance continued demand for nursery stock and resources as fruit plantings continue to climb. Read More
FruitsImproving Water Management Techniques
September 8, 2014
Improving groundwater management and managing salinity are a couple tactics growers can use to cope with the effects of the drought. Read More
Farm ManagementStay One Step Ahead Of Legal Challenges
September 8, 2014
Don’t get caught up in easily prevented legal troubles from a lack of planning. Read More
FruitsItalian Machinery Show Intends To Strengthen Ties With…
September 8, 2014
EIMA International will feature more than 1,800 exhibitors from 40 countries, approximately 200,000 visitors, and 40 official foreign delegations. Read More
Farm ManagementWilbur-Ellis’ Updates AgVerdict Software After Grower…
September 8, 2014
Design made with growers in mind, allows on-the-go data entry. Read More