News & Notes: Double-Stranded RNA in Isolates of Discula destructiva from the Pacific Northwestern United States and British Columbia, Canada

1997 ◽  
Vol 34 (1) ◽  
pp. 67-69 ◽  
Author(s):  
Jun-Mei Yao ◽  
Susan D. McElreath ◽  
Frank H. Tainter
Keyword(s):  
United States ◽  
British Columbia ◽  
Double Stranded Rna ◽  
The Pacific ◽  
Discula Destructiva

scholarly journals Southerly Extension of Poplar Leaf Blight (Linospora tetraspora) in the Pacific Northwest

Plant Disease ◽  
1998 ◽  
Vol 82 (5) ◽  
pp. 590-590 ◽  
Author(s):  
G. Newcombe
Keyword(s):  
United States ◽  
British Columbia ◽  
Pacific Northwest ◽  
Populus Trichocarpa ◽  
Hybrid Poplar ◽  
The United States ◽  
Leaf Blight ◽  
Voucher Specimen ◽  
The Pacific ◽  
Poplar Leaf

Poplar leaf blight caused by Linospora tetraspora G. E. Thompson (Ascomycetes, Valsaceae) is widespread on Populus balsamifera in Canada from Quebec to British Columbia (1). The only United States records of this northerly fungus are from Vermont, Wisconsin, and Alaska (1,2). There are no records of this fungus on the Pacific Coast south of British Columbia, despite the presence of susceptible hosts (i.e., Populus trichocarpa and its hybrids). However, in September of 1997, the disease was observed in a hybrid poplar plantation at latitude 47.9°N and longitude 122.1°W near Snohomish, Washington. Blight affected the lower crown of trees in their second year of growth. Leaf lesions, with their characteristic black stromata, were easily distinguished from symptoms of other diseases. Some individual lesions of L. tetraspora affected entire leaf laminae, but there appeared to be little premature defoliation at the time of observation. Populus trichocarpa × P. deltoides hybrids were more commonly blighted than were P. trichocarpa × P. maximowiczii hybrids (i.e., 13/18 clones affected versus 4/11, respectively). A voucher specimen was deposited in the Herbarium at the Pacific Forestry Centre (DAVFP 25289). References: (1) M. E. Barr. Mycol. Mem. No. 7:130, 1978. (2) D. F. Farr. et al. 1989. Fungi on Plants and Plant Products in the United States. American Phytopathological Society, St. Paul, MN.

scholarly journals A Regional Comparison of Stumpage Values in British Columbia and the United States Pacific Northwest

1980 ◽  
Vol 56 (5) ◽  
pp. 225-230 ◽  
Author(s):  
David Haley
Keyword(s):  
United States ◽  
British Columbia ◽  
Pacific Northwest ◽  
Good Reason ◽  
Forest Products ◽  
The United States ◽  
Short Supply ◽  
North West ◽  
The Pacific ◽  
Market Opportunities

In this paper, stumpages in British Columbia are compared with those in the Pacific Northwest region of the United States where public timber is sold in highly competitive markets. In 1978, the average stumpage for public timber in the Pacific Northwest was $39.11/m3 compared to $4.58/m3 in British Columbia. Between 1963 and 1978, real stumpage prices in the Pacific Northwest (i.e. net of inflationary increases) showed an upward trend of almost 11% per annum compared to a slight downward trend for British Columbia. Although the appraisal method used by the United States Forest Service is similar to the method used in British Columbia, appraised stumpages for the British Columbia Coast are considerably lower than for western Washington.There is little doubt that the principle reason for higher stumpages in the Pacific Northwest is that all public agencies involved in timber production encourage competitive bidding for standing timber, whereas in British Columbia competitive sales of public timber have been virtually eliminated. Other reasons include tax considerations on the part of firms in the Pacific Northwest with private timber holdings, the higher average quality of the timber resource in the Pacific Northwest compared to British Columbia and the fact that forest products companies in the Pacific North west face better market opportunities, particularly with respect to plywood, than their counterparts in British Columbia. Imperfections in the Vancouver Log Market may partially explain why appraised timber values in western Washington are higher than on the British Columbia Coast.There is good reason to believe that if public timber in British Columbia was sold competitively, stumpages, in many cases, would be bid well above their appraised level and direct Crown revenues would be substantially increased, particularly in those regions of the Province where accessible, high quality stands of timber are in short supply.

A Survey of the Parasites of Freshwater Fishes from the Mainland of British Columbia

1954 ◽  
Vol 11 (6) ◽  
pp. 673-708 ◽  
Author(s):  
Ralph V. Bangham ◽  
James R. Adams
Keyword(s):  
United States ◽  
British Columbia ◽  
Introduced Species ◽  
Pacific Coast ◽  
Freshwater Fishes ◽  
The United States ◽  
Parasite Fauna ◽  
Eastern Canada ◽  
The Pacific ◽  
The Common

Examination of 5,456 fish of 36 different species during 1951 and 1952 showed 4,925 or 90 per cent to be infected with at least one species of parasite. Records include fish from many lakes and streams of the Columbia and Fraser drainages and from a few localities in the Skeena, Peace, Liard and Skagit drainages. Parasites are recorded for each species of fish from each locality. The incidence of parasitism in the fish was comparable with that found by other surveys in eastern Canada and the United States. No major differences were found in the parasite faunas of the different river systems. Most of the common parasites were forms of circumpolar or general North American distribution. Several species of parasites described only from the Pacific coast area were common in certain hosts. Introduced species of fish showed very light infections with but few species of their normal parasites. The parasite fauna of fishes of this area appears to be less varied than in eastern and southern parts of the continent.

A Study of the Rosaria Group of the Genus Diarsia (Lepidoptera: Phalaenidae) with Special Reference to the Structure of the Male Genitalia

1950 ◽  
Vol 82 (2) ◽  
pp. 25-33 ◽  
Author(s):  
D. F. Hardwick
Keyword(s):  
United States ◽  
British Columbia ◽  
Pacific Northwest ◽  
Coniferous Forest ◽  
The United States ◽  
The Other ◽  
Forest Zone ◽  
California Coast ◽  
Species Ranges ◽  
The Pacific

A recent study of that complex of the genus Diarsia which at present is found in collections under the name rosaria Grt. has convinced me that at least two species, easily separable on the basis of maculation and colouring, have gone under this name. One of these, the true rosaria, is confined to the more northerly portions of the California coast. The other species ranges from Alaska south through British Columbia into the Pacific Northwest of the United States, and from the coast of British Columbia east through the northern coniferous forest zone to the coast of Labrador. The latter species is divisible on the basis of well defined genitalic differences into a subspecies inhabiting the Cordilleran region and a subspecies confined to the northern coniferous forest.

Petrels collected by Titian Ramsay Peale in the Pacific Ocean during the United States Exploring Expedition of 1838–1842

2008 ◽  
Vol 35 (1) ◽  
pp. 143-149 ◽  
Author(s):  
W. R. P. BOURNE
Keyword(s):  
United States ◽  
Pacific Ocean ◽  
The United States ◽  
Important Type ◽  
The Pacific ◽  
The Pacific Ocean

The report by Titian Ramsay Peale on birds encountered during the Wilkes Expedition was withdrawn for inaccuracy when few copies had been distributed, and re-written by John Cassin. A survey of the accounts of the petrels shows that this was not an improvement. Two important type localities for Procellaria brevipes and Thalassidroma lineata are probably wrong, and could be exchanged.

The Creation of a Regional Voice: The Care and Feeding of the Northwest Biosolids Management Association

2007 ◽  
Vol 2 (4) ◽  
Author(s):  
M. Lono-Batura ◽  
D. Thompson
Keyword(s):  
United States ◽  
British Columbia ◽  
Information Network ◽  
Sludge Management ◽  
Non Profit ◽  
Mass Audience ◽  
Management Association ◽  
Private And Public ◽  
Environmentally Sound ◽  
Sound Management

The biosolids producers in southwest Canada and the northwest United States have banded together to form a biosolids information network with the purpose of advancing the environmentally sound management of biosolids through education and information, regulations development and research and demonstration. This organization currently known as the Northwest Biosolids Management Association (NBMA) has grown from a gritty band of 14 sludge management visionaries to a fully incorporated non-profit association of over 200 members in both the private and public sectors. What spark ignited this conflagration of creativity? What calamity could possibly convince 200 relatively sober agencies to pony up a collective $200,000 American every year? What great cosmic bellows continues to force the airs of inspiration into the dry and desiccated souls of Biosolids managers across beautiful British Columbia and beyond? The answers lie in the modern day alchemy that is biosolids management. It is the inspiration gained from spinning gold out of something less aesthetically pleasing. It is the satisfaction in communicating to a mass audience the technical and counter intuitive science of residuals treatment. Creation and maintenance of a Biosolids information network is an essential tool in fostering the environmentally sound use of this extremely useful product.

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