Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Four speedwell species are important weeds in the Pacific Northwest:
• Ivyleaf speedwell (Veronica hederaefolia L.)
• Persian, birdseye, or winter speedwell (Veronica persica Poir.)
• Creeping speedwell (Veronica filiformis Sm.)
• Purslane speedwell (Veronica peregrina L.)
The action of a medicine may be less predictable in an older person and its intended action may be altered. Sometimes the effect is insignificant; other times it can be dramatic.
Catchweed bedstraw (Galium aparine L.), also called bedstraw or cleavers, is a native annual with weak, climbing, or twining stems, up to 6 feet long (figure 1). Whorls of six to eight narrow single-nerved leaves are attached to square stems (figure 2). Both stems and leaves have short backward-turning bristles...
Blackgrass (Alopecurus myosuroides Huds.), also known as slender foxtail, ranks, with wild oats and annual ryegrass, among the most important grass weeds in winter cereal production in Europe. It infests other winter crops there as well, including grass seed, rapeseed, and forage legumes.
Extensive areas of eastern Oregon, eastern Washington, and Idaho are well suited to dryland production of small grains and legumes. Commonly, over this area, winter wheat is planted in rotation with either annual legumes or summer fallow.
The common name powderpost beetle loosely applies to three closely related beetle families, Lyctidae, Anobiidae, and Bostrichidae. Powderpost beetles breed in dead wood, as well as dried and cured lumber. It is their larvae’s feeding that reduces wood to what scientists call frass—a fine powder or a mass of small...
Reprinted November 1993. Declared out of print July 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Western wildcucumber (Marah oreganus [T. & G.]
Howell), also known as Oldman- in-the-ground, Echinocystis
oregana Cogn., is a perennial with stems that
regrow each spring from a huge woody root.
Stems become long, and they climb with the aid of branched
tendrils. Leaves are alternate, lobed, and up to 6...