The group of scientists that make up the Intergovernmental Panel on Climate Change found in 2007 that the warming of Earth’s climate is unequivocal and largely due to human activity. Earth’s climate has changed in the past, though the recent magnitude and pace of changes are unprecedented in human existence....
Results from vegetation management trials involving horticultural crops conducted during the past year are compiled and reported by faculty members of the Oregon Agricultural Experiment Station, the Oregon State Extension Service, and colleagues who cooperated from adjacent states along with local enterprises. This work was conducted throughout Oregon and involved...
Published January 2010. A more recent revision exists.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
A succinct description of cultural practices for commercial cranberry production in Oregon, visually organized by growth stage throughout the year, from post-harvest through the following harvest.
Mealybugs, a family of soft, oval-bodied pests (Homoptera: Pseudococcidae), are known vectors (carriers) of the grapevine leafroll associated viruses (GLRaVs) of grape. This document gives details on how pheromone traps should be used to ensure optimal catches and early detection.
Gray mold, one of the most serious decay problems for pear fruit in the Pacific Northwest, is estimated to cause about $6 million in losses to the pear industry each year due to fruit rot in storage. These losses can be minimized by recognizing the factors that contribute to disease...
This report details a collaborative effort of the Wallowa Resources, Northeast Oregon Economic Development District and Oregon State University faculty members jointly affiliated with Extension Service and the Rural Studies Program to develop indicators of Wallowa County community vitality in a way that reflects the goals and values of the...
Nematodes are tiny but complex unsegmented roundworms that are anatomically differentiated for feeding, digestion, locomotion, and reproduction. These small animals make important contributions to organic matter decomposition and to the food chain. Some species, however, are parasitic to plants or animals. This publication provides a description and information on biology,...
‘ORCF-103’ is a common soft white winter wheat developed by Oregon State University in cooperation with the USDA Agricultural Research Service. This publication describes the variety, its agronomic characteristics, development, and seed availability.
‘Skiles’ is a common soft white winter wheat developed by Oregon State University in cooperation with the USDA Agricultural Research Service. This publication describes the variety, its agronomic characteristics, development, and seed availability.
This publication reviews the growth stages of grapes. For each growth stage (or group of growth stages), the document lists the more effective pesticides used to control insects and disease, their rates, and application timing for Oregon grape growers. It also covers the effectiveness of various fungicides for control of...
This brochure introduces the public to the Oregon Master Gardener program and welcomes those interested in becoming an Oregon Master Gardener volunteer to sign up on the website.
This publication gives a concise description of the causes, symptoms, and disease cycle of pear scab. It also describes the OSU-MCAREC three-part model to predict scab risk and help time fungicide sprays. Integrating nonchemical methods and fungicide applications optimized with the OSU-MCAREC model can result in production of high-quality pears...
The ability to correctly identify cultivars of commercially produced blackberry fruit is important to the industry. This manual gives growers and processors a first step in identifying blackberry cultivars by the seeds of their fruit. It includes 17 commercially grown blackberry cultivars.
A numerical study on the dynamic response of a generic rigid water-landing object (WLO) during water impact is presented in this paper. The effect of this impact is often prominent in the design phase of the re-entry project to determine the maximum force for material strength determination to ensure structural...
An experimental study of the dynamics of a generic rigid body during water impact and an equivalent-radius approximate analytical procedure is developed and calibrated in this study. The experimental tests in a wave basin covered a range of drop heights using a 1/6th-scale model of a practical water-landing object prototype...
This project was carried out collaboratively by Oregon State University (OSU) and the Oregon Department of Geology and Mineral Industries (DOGAMI) and involved continuation of the beach monitoring program begun in summer 2009 to determine baseline conditions and beach variability at the site of the planned Reedsport wave energy conversion...
This publication recommends management practices for controlling diseases and insects. This pest management guide was prepared for the home gardener. It doesn’t meet the exacting requirements of the commercial fruit grower. Many fungicides and insecticides are available, which, when used according to the label directions, are effective in managing diseases...
Strip tillage is a conservation tillage system that was developed for row crops grown in heavy, poorly drained cool soils in the northern corn belt states, but which some Pacific Northwest farmers are adapting to their local conditions. This publication provides information on strip tillage compared with conventional tillage, in...
Discusses how to choose the best type of animal for your needs and briefly mentions issues related to feeding and breeding. Provides information on safely using milk, either fresh or in butter, yogurt, or animal feed.
Quaking aspen (Populus tremuloides) is one of a few iconic trees that symbolize the spirit of the West. Though sparsely distributed throughout Oregon, aspen is an important species, providing a long history of benefits to both people and wildlife. “Quakies,” as many call aspen, are well liked by ranchers, hunters,...
Irrigation scheduling is directly related to profitable onion production and sustainable agricultural practices. Research at the Oregon State University Malheur Experiment Station has demonstrated that onion yield and grade are very closely related to irrigation practices, especially the criterion used to schedule irrigations. Careful attention to irrigation scheduling can help...
Shore pine is a subspecies of lodgepole pine that inhabits the coastal strip in Oregon. Insect pests, diseases, and nonbiological (abiotic) factors may have an impact on growth, visual appearance, and productivity of trees. In this publication, we review the general nature of shore pine in Oregon and the common...
Sweet cherry scion cultivars have been selected over millennia for many reasons, but over the past century, breeding programs have concentrated mainly on achieving improved characteristics such as yield, taste, fruit size, fruit firmness, fruit color, precocity, and resistance to fruit cracking and disease. In contrast, rootstock cultivars have only...
Cereal cyst nematodes reduce yields of wheat, barley, and oats in the Pacific Northwest states of Idaho, Oregon, and Washington. It is estimated that these pests reduce wheat profitability in these states by at least $3.4 million annually. This publication describes the distribution, biology, damage, management, and detection of cereal...
This is a fertilizer guide for commercial wholesale nurseries that produce shade and flowering trees for bareroot sales. Reviewed October 2010. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This publication introduces the reader to a process called lean manufacturing, sometimes called the Toyota Production System. The intended audience is manufacturers of forest products, although manufacturers of other types of products will also find this publication useful.
Many nutrients and lime are not mobile in the soil. When applied to the soil surface without tillage, these materials remain in the top 2 inches, especially in production systems that lack tillage. If a soil sample is taken at a standard 8-inch depth, the top 1 to 2 inches,...
Proper irrigation, despite being one of the most important factors in maintaining a healthy lawn, is the most often overlooked variable in lawn care. This publication describes common turfgrass species, soil water holding capacity, irrigation scheduling, and management practices to optimize irrigation efficiency.
ORSS-1757 is a common soft white winter wheat variety developed by Oregon State University in cooperation with the USDA Agricultural Research Service (USDA-ARS). This publication describes its area of adaptation and agronomic characteristics.
Seed moisture content is the most reliable indicator of seed maturity and harvest timing in grass seed crops. There are two significant times during harvest that knowledge of seed moisture is critical: at swathing and at combining. Swathing within the correct range of seed moisture content will maximize seed yield...
Soft white winter wheat is grown in western Oregon and requires a spring application of nitrogen (N) fertilizer for optimum production. Determining the amount of N to apply has been a challenge for growers. Wheat obtains N from two sources: soil and fertilizer. Both available and mineralizable N can be...
Peppermint residue consists of the cooked leaves and stems of the peppermint plant after high-temperature distillation to extract oil. This residue has value as a soil amendment. It is often applied to fallow fields in the fall or sold as a soil amendment to gardeners. Research was conducted to determine...
A tool to help commercial fruit growers identify early damage caused by spotted wing Drosophila (SWD) on blueberries (Duke), raspberries (Malahat), strawberries (Seascape), cherries (Bing, Montmorency, and Rainier), and grapes (Pinot Noir, Chardonnay). Includes photos showing each fruit type a day or two after egg laying, 3 to 4 days...
Native forb seed production is needed for rangeland restoration and reclamation projects within the Great Basin. Sulphur-flower buckwheat (Eriogonum umbellatum) is a very adaptable species with many subspecies in the western United States and Canada. This publication focuses on sulphur-flower buckwheat seed production to aid interested growers with production techniques...
Concise information on the basics of pasture and livestock management, including use of sound conservation practices. Particularly for the region east of the Cascade Mountains. Companion audio files describe:
audio1: Pasture Management. Ways to avoid overgrazing and balance the number of animals with available forage.
audio2: Pasture Fertility. Keep pastures...
Concise information on the basics of managing livestock in winter, including use of sound production practices. Particularly for the region east of the Cascade Mountains. Companion audio files describe:
audio4: Winter Livestock Care. How to keep your animals healthy in inclement weather, through shelter, feeding, and water access.
audio5: All...
Results from vegetation management trials involving horticultural crops conducted during the past year are compiled and reported by faculty members of the Oregon Agricultural Experiment Station, the Oregon State Extension Service, and colleagues who cooperated from adjacent states along with local enterprises. This work was conducted throughout Oregon and involved...
The Review Panel was chaired by Susan Capalbo (OSU). Members included Jack Barth (OSU), Sally Hacker (OSU), Jo-Ann Leong (Hawaii Institute of Marine Biology), Jim Sanders (Skidaway Institute of Oceaongraphy) and John Stein (NOAA Fisheries). The charge to the Panel was to “determine how [the OSU Hatfield Marine Science Center...
Presents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, cherries, and apricots; includes Integrated Fruit Production (IFP) preference rankings for pears and apples. Provides (1) spray program for nutrients; (2) dilutions table for wettable powder and liquid products;...
A guide for both commercial growers who rent honey bees for pollination and beekeepers who provide pollination services, including information on honey bee colony strength evaluation, average number of colonies needed for pollination, basic honey bee biology in context of pollination, and pollination contracts.
Weeds in snap beans drag down yield and contaminate products sent to processors or markets. They may even make it impossible to harvest the crop mechanically. It is worth the effort to be proactive when managing weeds in row crops. Proactive rather than reactive approaches are essential to successful management...