research
Final Report – Funding Cycle 2021 – 2023 (Three years) Principal Investigator – Michelle Moyer, Washington State University, Prosser Co-P.I. – David Gadoury, Cornelle University Telephone: 509-786-9234 Summary: Dr. Moyer studied UV-C light for integration into powdery mildew management programs in Washington State. A component of her evaluation was to…
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Location: Central WashingtonDesignated: 2012Total Size: 162,762 acresAcreage Under Vine: 1,604 (649 hectares)Top Varieties: RieslingSoils:  Fine sand along with silt and sandy loam Average Annual Precipitation: 6 inches Two Things to Know: One of the only appellations in Washington planted more to white varieties than red. Its northern location and higher elevation…
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Location: South-central WashingtonDesignated: 2020Total Size: 815 acresAcres Under Vine: 110 acres (44 hectares)Top Varieties: Cabernet SauvignonSoils: Loess, windblown silt and sand, ice age flood sediment Average Annual Precipitation: 5 inches Two Things to Know: Candy Mountain is currently the smallest appellation in Washington. Its proximity to Red Mountain give it similarities…
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Location: South-central Washington & north central Oregon Designated: 2004Total Size: 191,000 acresAcreage Under Vine: Total vineyard acreage: 950 (384 Hectares); Washington acreage: 381 (154 Hectares)Top Varieties: Chardonnay, Pinot NoirSoils: Silt loamAverage Annual Precipitation: 10-36 inches Two Things to Know: The western-most appellation in eastern Washington. It is known for its diversity…
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Location:  Central, south-central, and south- eastern Washington and north-central Oregon Designated: 1984Total Size:  11 million acres Acreage Under Vine: Total vineyard acreage: 60,079 (24,313 hectares); Washington acreage: 59,234 (23,971 hectares)Top Varieties:  Cabernet Sauvignon, Chardonnay, Merlot, Riesling, SyrahSoils:  Loess overlying gravel and slackwater sediment with a basalt bedrockAverage Annual Precipitation: 6-8 inches Two…
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Location: South-central WashingtonDesignated: 1983Total Size: 665,600 acresAcreage Under Vine: 17,082 acres (6,912 hectares)Top Varieties: Chardonnay, Riesling, Merlot, Cabernet SauvignonSoils: Deep silt-loam over basalt bedrock and gravel Average Annual Precipitation: 8 inches Two Things to Know: The Horse Heaven Hills is a warm, windy region. It is home to one-quarter of Washington’s…
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Location: North-central WashingtonDesignated: 2009Total Size: 24,040 acresAcreage Under Vine: 269 acres (109 hectares)Top Varieties: Syrah, Pinot Noir, Chardonnay, Pinot Gris, Merlot, Riesling Soils: Glacial sediments along with ash and pumice Average Annual Precipitation: 11 inches Two Things to Know: Lake Chelan is one of the only appellations that does not have basalt…
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Location:  South-eastern Washington and north-western IdahoDesignated: 2016Total Size:  306,658 total acres, 85,864 in WA Acreage Under Vine: Total vineyard acreage: 100 (40 Hectares); Washington acreage: 9 (4 Hectares)Top Varieties:  Chardonnay, Pinot Noir, MerlotSoils: Loess and Mollisols from bunchgrass roots Average Annual Precipitation: 11-22 inches Two Things to Know:  Lewis-Clark Valley is a…
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Location: Northwestern WashingtonDesignated: 1995Total Size: 5.5 million acresAcreage under vine: 121 acres (49 hectares)Top Varieties: Pinot Noir, Madeline Angevine, SiegerrebeSoils: Gravelly sandy loam over glacial hardpan Average Annual Precipitation: 15-60 inches Two Things to Know: Currently Washington’s only growing region located west of the Cascade Mountain range. It therefore has a…
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Location: South-central WashingtonDesignated: 2006Total Size:  68,500 acresAcreage Under Vine: 1,807 acres (731 hectares)Top Varieties: Merlot, Cabernet Sauvignon, Syrah, RieslingSoils: Silt loam and loam Average Annual Precipitation: 6-12 inches Two Things to Know:  Rattlesnake Hills is generally higher in elevation than the Yakima Valley as a whole.  About half of the appellation is…
