Butterflies are some of the most beautiful, fragile animals in nature, sometimes called “flying flowers.” Butterflies and moths pollinate flowers, and both adults and larvae are an important food source for birds, bats, and other wildlife. Nearly 700 kinds or species occur in North America. About 20 species commonly are...
An alternative to traditional roofing, extensive green roofs are contained ecosystems consisting of a drainage layer, a thin media profile which is planted with hardy plant species. Extensive green roof plants must maintain multiple functions while growing in a highly aggregate media at a depth of equal to or less...
Published January 1999. 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
With a little extra planning and care, you can enjoy fresh vegetables from your garden most of the year. Many cool-season crops produce well in the fall and, in mild-winter areas of the Pacific Northwest, hold through the winter if protected. You can plant these vegetables in mid- to late...
“Cloche” (pronounced klōsh) is French for a bell jar or dish that is set over delicate plants to protect them from cold weather. The definition has expanded to include many types of portable and permanent structures that shelter plants from wind and cold, serving as mini-green houses. They have become...
Most insects are not pests. Only those that feed on desirable plants or transmit disease cause problems for gardeners. Many insects are very useful. Some are pollinators of fruits, flowers, and vegetables, while others help control insect pests.
There are three types of beneficial insects: predators, pollinators, and parasitoids.
Published April 1974. 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
Stocks of salmon are declining in the Pacific Northwest. Based on region-wide studies that list and categorize the status of salmon stocks (Nehlsen et al., 1991; Huntington et al., 1994; and Nawa, 1995), I analyze the watersheds where stocks of salmon spawn for several anthropogenic variables, most of which are...
Published July 1987. 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
Large fallen trees in various stages of decay contribute much-needed diversity of ecological processes to terrestrial, aquatic, estuarine, coastal beach, and open ocean habitats in the Pacific Northwest. Intensive utilization and management can deprive these habitats of large fallen trees. The publication presents sound information for managers making resource management...