First Report of Downy Mildew of Chives Caused by Peronospora destructor in the Pacific Northwest

2003 ◽  
Vol 4 (1) ◽  
pp. 38
Author(s):  
Dean A. Glawe
Keyword(s):  
Downy Mildew ◽  
Pacific Northwest ◽  
Puget Sound ◽  
Washington State ◽  
King County ◽  
Specialty Crops ◽  
First Report ◽  
Peronospora Destructor ◽  
The Pacific ◽  
Allium Schoenoprasum

Chive (Allium schoenoprasum L.) is one of the specialty crops grown by farmers in the Puget Sound region of Washington State. In September, 2002, downy mildew symptoms were observed in a 0.2 hectare field planting of chive near Fall City, King County, WA. Downy mildew had not been reported previously on chive in the Pacific Northwest. Accepted for publication 15 April 2003. Published 12 May 2003.

First Report of Powdery Mildew of Myosotis sylvatica (Wood Forget-me-not) Caused by Golovinomyces cynoglossi (Erysiphe cynoglossi) in Washington State

2004 ◽  
Vol 5 (1) ◽  
pp. 18
Author(s):  
Dean A. Glawe
Keyword(s):  
Powdery Mildew ◽  
Pacific Northwest ◽  
Washington State ◽  
Causal Organism ◽  
First Report ◽  
The Pacific ◽  
Western Washington ◽  
Symptoms And Signs

Wood forget-me-not cultivars are popular ornamentals in the Pacific Northwest. In western Washington, this species frequently displays symptoms and signs of powdery mildew after anthesis. This report records the disease from King, Pierce, Snohomish, and Skagit counties and describes and illustrates symptoms of the disease as well as taxonomically important features of the causal organism. Accepted for publication 29 October 2004. Published 24 November 2004.

First Report of Powdery Mildew of Hypericum perforatum (St. John's-wort) Caused by an Anamorphic Microsphaera Species in the Pacific Northwest

2004 ◽  
Vol 5 (1) ◽  
pp. 20 ◽  
Author(s):  
Dean A. Glawe
Keyword(s):  
Powdery Mildew ◽  
Pacific Northwest ◽  
Hypericum Perforatum ◽  
Growing Season ◽  
Morphological Features ◽  
King County ◽  
First Report ◽  
St John’S Wort ◽  
St John's Wort ◽  
The Pacific

St. John's-wort has been valued as a medicinal herb for centuries. During the 2002 growing season a specimen plant with powdery mildew symptoms was observed in a demonstration garden in Kenmore, King County, WA. This report provides information on symptoms of the disease, morphological features useful in characterizing the causal agent, and taxonomic aspects of the fungus. Accepted for publication 30 June 2004. Published 07 July 2004.

First Report of Powdery Mildew of Onion (Allium cepa) Caused by Leveillula taurica in the Pacific Northwest

2004 ◽  
Vol 5 (1) ◽  
pp. 17 ◽  
Author(s):  
Lindsey J. du Toit ◽  
Dean A. Glawe ◽  
Gary Q. Pelter
Keyword(s):  
Powdery Mildew ◽  
Pacific Northwest ◽  
Allium Cepa ◽  
Washington State ◽  
Causal Agent ◽  
Columbia Basin ◽  
First Report ◽  
Leveillula Taurica ◽  
The Pacific ◽  
Published Report

A powdery mildew disease of onion has been observed infrequently in the Columbia Basin of Washington State since 1996, but this is the first published report of this disease in the Pacific Northwest. The causal agent was determined to be Leveillula taurica (Lév.) G. Arnaud. Accepted for publication 29 October 2004. Published 29 November 2004.

Washington State Ferries 2007–2009 Biodiesel Demonstration Project

2010 ◽  
Vol 26 (01) ◽  
pp. 36-46
Author(s):  
Paul H. Brodeur ◽  
Lisa N. Renehan ◽  
David W. Larsen
Keyword(s):  
Pacific Northwest ◽  
Puget Sound ◽  
Washington State ◽  
Second Phase ◽  
The Pacific ◽  
Study Results ◽  
Study Implementation ◽  
Clean Air ◽  
Marine Applications ◽  
Northwest Region

Washington State Ferries (WSF) is potentially one of the largest consumers of biodie-sel fuel in the Pacific Northwest region. Puget Sound Clean Air Agency (PSCAA) managed a scientific study to determine appropriate fuel specifications and fuel-handling procedures for using biodiesel blended fuels in WSF operations. Study results will transfer directly to other marine applications, as well as to land-based end users. This paper focuses on the second phase of this study, implementation of the trials.

First Report of Powdery Mildew of Nandina domestica Caused by Microsphaera berberidis (Erysiphe berberidis) in the Pacific Northwest

2003 ◽  
Vol 4 (1) ◽  
pp. 30 ◽  
Author(s):  
Dean A. Glawe
Keyword(s):  
Powdery Mildew ◽  
Pacific Northwest ◽  
Host Species ◽  
Puget Sound ◽  
First Report ◽  
Landscape Plant ◽  
Landscape Plants ◽  
The Pacific ◽  
Microscopic Features ◽  
Plant Grown

Nandina domestica is a bamboo-like landscape plant grown widely in the Pacific Northwest. In 2000 through 2002, powdery mildew was observed on landscape plants of N. domestica in cities in the Puget Sound region. Microscopic features of the fungus present in these specimens fit those of Microsphaera berberidis, previously reported from this host species in Scotland and California. Accepted for publication 29 September 2003. Published 23 October 2003.

First Report of Powdery Mildew of Kalanchoe blossfeldiana caused by Sphaerotheca fuliginea (Podosphaera fuliginea) in the Pacific Northwest

2003 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Dean A. Glawe ◽  
Rita Hummel ◽  
Grace Jack
Keyword(s):  
Powdery Mildew ◽  
Pacific Northwest ◽  
Sphaerotheca Fuliginea ◽  
First Report ◽  
Major Disease ◽  
The Pacific ◽  
Kalanchoe Blossfeldiana ◽  
Extension Center ◽  
Kalanchoë Blossfeldiana

Kalanchoe blossfeldiana Poelln. is a common ornamental houseplant. Although powdery mildew is a major disease of this species, there are no published reports of it in the Pacific Northwest. In August, 2002, powdery mildew was observed on six indoor K. blossfeldiana plants in an office and adjacent laboratory at the Puyallup Research and Extension Center. Accepted for publication 25 March 2003. Published 17 April 2003.

First Report of Powdery Mildew of Lycium chinense (Chinese Matrimony Vine) Caused by Arthrocladiella mougeotii in the Pacific Northwest

2004 ◽  
Vol 5 (1) ◽  
pp. 16
Author(s):  
Dean A. Glawe
Keyword(s):  
North America ◽  
Powdery Mildew ◽  
Medicinal Plant ◽  
Pacific Northwest ◽  
Morphological Features ◽  
Lycium Chinense ◽  
First Report ◽  
Landscape Plant ◽  
The Pacific ◽  
Plant Grown

Chinese matrimony-vine (Lycium chinense Mill.) is a traditional medicinal plant grown in China and used as a perennial landscape plant in North America. This report documents the presence of powdery mildew on L. chinense in the Pacific Northwest and describes and illustrates morphological features of the causal agent. It appears to be the first report of a powdery mildew caused by Arthrocladiella in the Pacific Northwest. Accepted for publication 10 November 2004. Published 8 December 2004.

scholarly journals Identification of a Kulshan caldera correlative tephra in the Palouse loess of Washington State, northwest USA

2016 ◽  
Vol 86 (2) ◽  
pp. 232-241 ◽  
Author(s):  
Georgina E. King ◽  
Nicholas J.G. Pearce ◽  
Helen M. Roberts ◽  
Victoria C. Smith ◽  
John A. Westgate ◽  
...  
Keyword(s):  
Trace Element ◽  
Pacific Northwest ◽  
Washington State ◽  
Fractional Crystallisation ◽  
Early Pleistocene ◽  
East Central ◽  
Trace Element Chemistry ◽  
The Pacific ◽  
Eruptive Volume ◽  
Reversed Polarity

AbstractThe Kulshan caldera formed at ∼1.15 Ma on the present-day site of Mt. Baker, Washington State, northwest USA and erupted a compositionally zoned (dacite-rhyolite) magma and a correlative eruptive, the Lake Tapps tephra. This tephra has previously been described, but only from the Puget Lowland of NW Washington. Here an occurrence of a Kulshan caldera correlative tephra is described from the Quaternary Palouse loess at the Washtucna site (WA-3). Site WA-3 is located in east-central Washington, ∼340 km southeast of the Kulshan caldera and ∼300 km east-southeast of the Lake Tapps occurrence in the Puget Lowland. Major- and trace element chemistry and location of the deposit at Washtucna within reversed polarity sediments indicates that it is not correlative with the Mesa Falls, Rockland, Bishop Ash, Lava Creek B or Huckleberry Ridge tephras. Instead the Washtucna deposit is related to the Lake Tapps tephra by fractional crystallisation, but is chemically distinct, a consequence of its eruption from a compositionally zoned magma chamber. The correlation of the Washtucna occurrence to the Kulshan caldera-forming eruption indicates that it had an eruptive volume exceeding 100 km3, and that its tephra could provide a valuable early-Pleistocene chronostratigraphic marker in the Pacific Northwest.

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