Podosphaera (Sphaerotheca) euphorbiae on Euphorbia epithymoides (= E. polychroma, cushion spurge) is reported for the first time in North America. Neoerysiphe (Erysiphe) galeopsidis on Lamium amplexicaule (henbit), Blumeria (Erysiphe) graminis on Festuca idahoenis (Idaho fescue), Taphrina johansonii on Populus tremuloides (trembling aspen), and Taphrina occidentalis on Alnus rubra (red alder) a...

Plant symptoms caused by Pseudomonas syringae ...................................................1 Severity of Pseudomonas syringae ............................................................... ...2 Predisposing factors increase severity ........................................3 (Wounding, Plant Dormancy, Soil factors, Dual infections) ............... 3 Classification of Pseudomonas syringae ...

Detailed mapping and geochronologic investigations from the eastern, southern, and western Nanga Parbat–Haramosh massif reveal two thrust-displacement shear zones that have a spatial and temporal link with granite plutonism from ca. 10 to 1 Ma. The shear zones define a crustal-scale antiformal pop-up structure, with dominant west-northwest–vergent and subordinate east-southeast–vergent thrustin...

Haynes, Richard W. 2008. Emergent lessons from a century of experience with Pacific Northwest timber markets. Gen. Tech. Rep. PNW-GTR-747. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 45 p. Timber markets in the United States are areas where timber prices tend to be uniform because of the continuous interactions of buyers and sellers. These m...

The deep ocean conditions and circulation during the Cretaceous have been characterized mainly by the sediments from the Tethys Sea and the proto-Atlantic Ocean, because sedimentological data from the Pacific basin from that period have been quite limited. Here we present new geochemical measurements from sediments that we collected from two sites in Hokkaido, Japan, that were presumably deposi...

We present morphological and spectroscopic studies of the northwest rim of the supernova remnant RX J1713.7−3946 based on observations by the Chandra X-ray observatory. We found a complex network of nonthermal (synchrotron) X-ray filaments, as well as a ’void’ type structure – a dim region of a circular shape – in the northwest rim. It is remarkable that despite distinct brightness variations, ...

The Northwest Coast stretches 1,800 km from Cape Mendocino, California, to Yakutat Bay, Alaska. It is usually divided into three or four subregions (Fig. 1), with the Oregon and northern California coasts the most ambiguous in their assignment to the Northwest Coast. In the nineteenth century, this was linguistically one of the most diverse regions of North America, with eight language families...

Many cultivars of ornamental conifers are difficult to propagate. Cuttings may root poorly and graft success may be highly variable even in the hands of skilled, experienced propagators. Because of these problems, we conducted a detailed study of the physiology of graft formation in Picea pungens 'Hoopsi' scions grafted on Picea abies rootstocks with the purpose of identifying factors limiting ...

The 1999 M 7.1 Hector Mine earthquake ruptured a complex fault system with a branched structure in the north. This fault geometry and slip pattern presents a puzzle, because the northwest branch of this system should be in the stress shadow of the north branch, upon which nucleation likely took place. Through 3D dynamic models of this event, we show that the ability of rupture to propagate to t...

UNLABELLED This article provides examples of adverse health effects, including weather-related injury, food insecurity, mental health issues, and water infrastructure damage, and the responses to these effects that are currently being applied in two Northwest Alaska communities. BACKGROUND In Northwest Alaska, warming is resulting in a broad range of unusual weather and environmental conditio...