In the Pacific Northwest, fires are a natural part of the changing landscape. As homeowners continue to build in the wildland-urban interface, they must take special precautions to protect their lives, homes, and property.
Winegrape production in the Pacific Northwest has expanded into areas where low winter
temperatures periodically cause cane damage or death. In the Walla Walla Valley, for example, minimum temperatures plummeted to below -20°F for several days in 1996 and 2004, killing most exposed canes. Cane temperatures most certainly remained below...
Paterson’s curse is a member of the borage family (Boraginaceae). It is native to Mediterranean Europe and North Africa but has spread to southern Africa, South and North America, Australia, and New Zealand. Outside of its native habitat, it is an aggressive, drought-tolerant plant that adapts to many soil moisture...
In recent years, the number of fresh-market sweet cherry cultivars (varieties) produced in the Pacific Northwest (PNW) has grown from a few, dominated by one (Bing), to a dozen or more. Lapins was among the first new cultivars to gain significance in the mid-1990s, followed by Sweetheart, Chelan, Tieton, and...
In some homes, clothes moths can damage garments and other belongings. There are two common species of clothes moths in the Pacific Northwest: the webbing clothes moth (Tineola bisselliella) and the casemaking clothes moth (Tinea pellionella). The larvae,
or immature form, of the moths are responsible for the damage done...
Las polillas pueden dañar la ropa y otros artículos. Hay dos especies comunes de polillas en el Noroeste del Pacífi co: la polilla tejedora (Tineola bisselliella) y la polilla del estuche, también conocida como polilla capullera (Tinea pellionella). Son las larvas las que hacen daño.
Wireworm is the common name for the larvae of click beetles (Coleoptera: Family Elateridae). The adults do little or no damage, although there are some anecdotal reports that they can damage certain crops (e.g., grapes and stone fruits) by feeding on flowers. However, larval wireworms are among the most destructive...
This publication is a technical and practical guide for soil acidification in commercial fields. It explains the soil chemistry involved, how to determine whether pH adjustment is feasible, and methods for acidifying soil. This guide is divided into five sections:
• Understanding soil pH
• The problem—iron chlorosis
• Causes...
Accumulation of excessive salt in irrigated soils can reduce crop yields, reduce the effectiveness of irrigation, ruin soil structure, and affect other soil properties. This publication is designed to help you evaluate the kind and amount of salts present in soils and to select management alternatives. This publication describes the...
Silver scurf is caused by a fungus, Helminthosporium solani, a relatively new problem related to potato production in North America. It wasn’t until the early 1990s that this fungus was identified as being a serious problem in the Pacific Northwest. This fungus produces a surface blemish on tubers, causing them...