Despite increasing consumer demand for organic food and farm products and double-digit annual sales growth, U.S. organic production is currently flat and unable to meet demand. This report presents findings from a national survey of farmers about their experiences with organic transition, exploring motivations, obstacles, and desired resources and support...
The main research goal for this study was to describe how investment into the Hubs has influenced local STEM communities; that is, how STEM Hubs have begun to create opportunities for partnerships, collaboration, connected programing, improved program development or delivery, or improved communication within and outside the STEM teaching and...
Stabilization of the Yaquina Bay shoreline along the northeastern edge of the Hatfield Marine Science Center (HMSC) campus in Newport, Oregon became necessary to halt erosion that threatened both HMSC critical infrastructure (seawater storage tank) and public access to the HMSC Nature Trail. A Dynamic Revetment (gravel beach) was installed...
Contains ground-truthed wetland maps and scores representing ecosystem services of a large portion of the wetlands in Juneau, Alaska. LiDAR imagery was used extensively.
The Juneau Wetland Management Plan (JWMP), Volume 1, provides results of wetlands mapping and wetland functional assessments for currently undeveloped parcels within the City and Borough of Juneau (CBJ). The study areas were selected for their potential for future development based on low elevation and proximity to existing infrastructure. During...
The primary purpose of this pest management guide is to provide fruit growers with up-to-date information on registered pesticide uses considered to be effective for controlling insect pests, mite pests, and diseases, when applied at the listed rates and timings.
Introduction: To study the health status of 200 G6PD enzyme-deficient Sarawak newborns, we compared their birth records to those of non-deficients in terms of low birth weight (LBW). To characterize ethnic groups, we analysed newborns in terms of LBW and G6PD population frequency.
Methods: For this retrospective study, health records...
Stakeholders in the southern Blue Mountains have reported a need for a scientific review of the northern goshawk (Accipiter gentilis atricapillus; hereafter, goshawk) in relation to dry forest restoration and management activities. Here, we provide a compilation of relevant synthesis papers, existing peer-reviewed research, and goshawk monitoring efforts in the...
Diverse stakeholders and land management agencies are increasingly working together in “forest collaborative” groups to meet ecological, economic, and social goals on Oregon’s public lands. Many collaboratives focus on science-based ecosystem restoration. One such group is the Deschutes Collaborative Forest Project (DCFP) in central Oregon, which seeks to increase forest...
We compiled existing data and information to characterize the condition and trends in high priority natural resources in Ebey’s Landing National Historical Reserve (EBLA, or "the Reserve"). We identified 29 indicators to evaluate seven major resource concerns. For each indicator we attempted to define reference conditions to which we could...
Collaborative Regional Learning This document is part of a forest collaborative regional learning project on aspen restoration and social agreements. Thanks to all the individuals, collaborative groups, and organizations who provided feedback and suggestions. We appreciate the participation of members from: Blue Mountains Forest Partners, Deschutes Collaborative Forest Project, Harney...
Oregon leads the U.S. in the number and extent of established collaborative groups on national forests. Understanding similarities and differences in Oregon’s current forest collaboratives may aid more informed approaches to peer learning, policy, and technical assistance in public and private land natural resource management across the U.S. West. Our...
Stabilization of the Yaquina Bay shoreline along the northeastern edge of the Hatfield Marine Science Center (HMSC) campus became necessary to halt erosion that threatened both HMSC critical infrastructure (seawater storage tank) and public access to the HMSC Nature Trail. A Dynamic Revetment (gravel beach) was installed in November, 2011...
Abstract— This study describes the sound produced by a
hydrokinetic turbine operating in a riverine environment near
Iguigig, AK (USA). Drifting spar buoys equipped with
hydrophones and GPS loggers were used to characterize
temporal and spatial variability in turbine sound over a range of
turbine operating conditions. Because of the...
Because studies of forestry effects on wetlands have been so infrequent in the Pacific Northwest, each section in this report drew heavily from studies of forestry impacts to streams and riparian zones. After assembly and synthesis, that information was extrapolated, mostly in the form of hypotheses, to the very different...
Published February 2008. Revised December 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Tools woodland owners need to measure property acreage, boundaries, and characteristics of standing timber, including individual log volumes, are described.
This detailed guide illustrates how to test fruit for the presence of the Spotted Wing Drosophila larvae by crushing the fruit, immersing it into a salt or sugar solution and examining the fruit debris for larvae and pupae.
Typhlodromus pyri (T. pyri) is a beneficial insect and key predator of Calepitrimerus vitis (C. vitis) in Pacific Coast vineyards. C. vitis is closely associated with short-shoot syndrome. The impact of horticultural (paraffinic) oils and sulfur on T. pyri is presented here. This publication contributes to integrated pest management and...
This publication describes raspberry cultivars, including red, yellow, black, and purple types. It explains the difference between floricane-fruiting and primocane-fruiting cultivars, includes information on commercial value, and identifies which cultivars work well for home gardens.
This publication describes blueberry cultivars, including northern highbush, southern highbush, rabbiteye, lowbush, and half-high types. It includes information on commercial value and identifies which cultivars work well for home gardens.
This guide provides nutrient and lime recommendations for establishment of turf and forage perennial ryegrass grown for seed in western Oregon. Healthy plants with adequate root systems are required to obtain the greatest return from your fertilizer investment. The nutrient recommendations in this guide assume that adequate control of weeds,...
La chinche de encaje (Stephanitis pyrioides) de la azalea, también conocida como “azalea lace bug” en ingles, es una nueva plaga que causa daños considerables en las azaleas y los rododendros. En esta publicación hay información sobre ciclo de vida del insecto, cómo el daño se caracteriza, monitoreo y control.
This publication outlines hazelnut orchard design considerations, including density and yield, spacing and arrangement of permanent trees, and loading zones. It also includes a brief description of procedures for establishing a new orchard.
This publication describes factors to consider when deciding to plant a hazelnut orchard and includes a table of native productivity ratings for soil series types in the Willamette Valley.
This publication lists the components of a comprehensive nutrient management strategy and provides nutrition guidelines for mature and new hazelnut orchards.
This publication provides guidelines for purchasing and propagating planting stock. It describes simple layering, tie-off layering, grafting, and cuttings.
This publication includes tables that summarize characteristics of the main hazelnut varieties produced in the United States, lists varieties' susceptibility to eastern filbert blight, and shows varieties' compatibility with each other for pollination.
This publication gives a brief introduction to hazelnuts, which are sometimes called filberts. It provides an overview of hazelnut history, growth and production, geographic distribution, and hazelnut industry organizations.
How do you know whether to switch from one home-heating source to another? This publication can help you decide by comparing the costs of available energy sources. Includes a step-by-step guide and a downloadable calculator to help you compare.
This workbook is an Excel spreadsheet that allows homeowners to compare the cost of using firewood or wood pellets with other fuels for heating their home.
This publication provides a glossary of botanical terms related to hazelnut pollination and describes the flower and nut development process, pollination, and related issues.
This publication is a spreadsheet with accompanying instructions. It allows timber owners to compare the pricing strategies for four different mills to determine which mill specifications will return the highest possible revenue based on the dimensions of trees on the landowner’s property.
Forest landowners are interested in practicing alternative silviculture methods on their property without having to clearcut. This publication describes a case study on Individual Tree Selection (ITS) in a mixed conifer forest in Northeast Oregon. ITS is of interest because it provides a continuous forest canopy; potentially reduces reforestation costs;...
Forest landowners are interested in practicing alternative silviculture methods on their property without having to clearcut. This publication describes a case study on shelterwood harvest and two-aged stand management of a forest in the Oregon Coast Range. The landowner’s core management philosophy is to create forests that are both ecologically...
Laboratory soil tests help you develop and maintain more productive soil and increase crop production by providing information on the available nutrient content of your soil. Soil testing helps you select the correct kind and amount of fertilizer and liming material. Recommendations are based on the results of fertilizer experiments,...
Несколько видов ягодных культур коммерчески выращивают в штате Орегон, в том числе, летом плодоносящие и плетье-плодоносящие малины (красная и черная) и ежевика то есть ажина. Эта публикация направлена на оценку содержания и внесения питательных веществ, применяющихся в выращивании кустарных ягод в западной части Орегона.
Large raspberry aphid, Amphorophora agathonica, is an important pest in red and black raspberries in the Pacific Northwest. It transmits plant viruses that cause decreased cane vigor and fruit quality, making it a significant pest for growers. This publication includes aphid identification, biology, monitoring techniques, and control methods.
Azalea lace bug is an emerging pest in Oregon that can be quite damaging to azaleas and rhododendrons, very popular plants in Oregon nurseries and landscapes. This publication offers information on identification, timing, and management options for this new pest.
Soil acidity, expressed by low soil pH, causes reduced crop growth and significant economic loss. It is the most commonly overlooked and poorly understood yield-limiting factor in western Oregon and a developing concern in eastern Oregon. This publication describes the concept of soil acidity and the limitations it causes for...
The mountain beaver is a medium-sized rodent of the western Pacific Northwest. Mountain beavers cause damage to forest regeneration by clipping or girdling seedlings or saplings or both, and undermining roots. Methods to control mountain beaver include trapping, toxicants, exclusion, repellents, and habitat modification. This publication describes and recommends a...
Vineyard design and management methods that create vine balance will help sustain productive yields, achieve desired fruit quality and maintain vine health. Different climates across Oregon will affect strategies for achieving vine balance, but the basic approach is the same everywhere.
Canopy management is critical to successful winegrape production. Canopy management begins with vineyard design and includes decisions about soil, water, cover cropping, fertilization and weed control. Shoot thinning, leaf removal, hedging and crop thinning are also part of canopy management.
This publication addresses factors that farmers must consider when planning an on-farm composting enterprise: the composting process and its impact on water quality, site selection, facility layout and design, composting methods, and managing water and leachate. The content pertains to small and medium-size on-farm composting enterprises that handle about 100...
The publication provides vineyard owners with approaches for finding the first occurrence of grape powdery mildew. The publication covers tactics to manage powdery mildew, including use of fungicides and canopy management. It also discusses effective scouting techniques based on the key characteristics of the fungus.
Discusses the benefits of having a management plan for your property. Describes how to prepare a management plan, including describing the property, setting goals, identifying resources, making recommendations, and keeping records. Includes additional sources for information.
This publication describes how to estimate lime application rate and lists criteria for choosing liming materials (source), lime application method (placement), and how often to apply lime (frequency).
Liming is a new practice for the inland Pacific Northwest, necessitated by soil acidification caused by nitrogen fertilization. This publication provides guidance on how to evaluate cropping systems for lime need and how to determine lime application rate.
Procedures outlined in this publication show how to estimate standing volume and annual growth of individual timber stands that are relatively uniform in species, age, size, and density. Estimates of volume and growth are helpful in planning when to harvest or how much to remove in a thinning operation. These...
This workbook is a companion to OSU Extension publication EM 9058, Measuring Your Trees. Before using this workbook, collect data following the procedures outlined in EM 9058. Then enter your data in this workbook to automatically calculate several stand volume and growth measurements and generate a printable summary report.
Describes the symptoms and damage caused by silver scurf, a fungal disease of potatoes. Includes color photos of symptoms. Discusses sources of inoculum and the disease life cycle. Suggests management practices (seed selection, crop rotation, seed treatments, management of die-down, sanitation, harvest, and storage) to minimize disease problems.
Tarif numbers are essential for calculating the volume of standing timber on forest land. This publication includes comprehensive tarif numbers for six species of Oregon timber--Douglas-fir, grand fir, ponderosa pine, red alder, western hemlock, and western redcedar--and the corresponding tree volumes.
Explica el uso de los sensores matriciales granulares para la medición de la tensión de humedad del suelo. Explica cómo instalar estos sensores y cómo usar los datos registrados para la programación del riego. (Discusses the use of granular matrix sensors (GMS) for monitoring soil moisture content . Explains how...
Sound and essential management practices, succinctly described, for maintaining a high quality, productive pasture and healthy livestock. The publication is primarily directed to eastern Oregon small acreage landowners.
This publication discusses the use of granular matrix sensors (GMS) for monitoring soil moisture content. It explains how to install GMS and use the recorded data for irrigation scheduling.
Discusses the advantages of drip irrigation and how it can help growers use water efficiently. Covers basic concepts related to components and design as well as management considerations such as placement of the tape, timing and rates, maintenance, and adjustments to fertilizer rates.
Alerts people who visit, live, or work in certain areas of Oregon and California about a serious plant disease called Sudden Oak Death, and asks them to take steps to prevent spreading the disease. Gives action steps, shows disease symptoms on various host plants, and gives numerous sources for more...
Provides suggestions for ways to conserve irrigation water. Explains how to use the AgriMet crop water use charts. Provides general guidelines for irrigation methods, timing, and soil management.
A toolkit for farmers, Extension agents, community organizers, and other agricultural professionals interested in starting and maintaining a successful farmer network. The publication is divided into two sections: an instruction guide (with information on establishing, promoting and managing a farmer network) and a toolbox (with tips, examples, case studies, and...
Regularly producing sustainable yields of high-quality cherries is possible only where site and other conditions are near optimal. This publication summarizes factors to consider when establishing a cherry orchard including orchard economics, site selection and optimization, plant material, orchard design, fertilization and irrigation, and labor. Also lists additional resources.
This publication describes how to calibrate waste-handling equipment and calculate nutrient application rates. It covers calibration of typical equipment found on dairies, such as stationary guns, traveling guns, liquid wagons, and solids spreaders. It uses nitrogen in the calibration examples, but the same techniques can be used with phosphorus.
This publication gives an overview of processing cherry production in Oregon and describes cherry cultivars used for brining, freezing, and canning. It also provides information on diverting fresh-market cherries to the processing industry and developing strategies for profitability.
This publication describes the parasites most commonly found in sheep and goats and outlines methods for idenitfying, testing for, and treating parasite infestations.
As the ocean wave energy field continues to mature,
developers need a generic modeling methodology to test their
designs before building prototypes. A design methodology for a
first-pass time-domain simulation is a goal of this work. Built on
results from the frequency domain analysis, the general
procedure for obtaining time...
Three-dimensional symmetric tensor fields have a wide range of applications in solid and fluid mechanics. Recent advances in the topological analysis of 3D symmetric tensor fields focus on the local behaviors of tensor fields at degenerate points, which usually form curves. In this paper, we make a number of observations...
Pine Creek Conservation Area (PCCA), just northeast of the John Day River in Wheeler County, Oregon, was acquired in 1999-2001 by the Confederate Tribes of Warm Springs with support from the Bonneville Power Administration (BPA), to mitigate for wildlife losses created by the large, hydropower Columbia River Dams, particularly the...
Presents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, and cherries. Provides (1) spray program for nutrients; (2) dilutions table for wettable powder and liquid products; (3) natural enemy impact guide for tree fruit pesticides; (4) illustrated bud...
This publication is prepared to assist processors of specialty food, distributors, vendors, and food regulators of backgrounds and experience in finding specific information on producing safe specialty food products. This publication discusses the unique characteristics of specialty foods, identifies food safety concerns in specialty foods production, and provides examples of...
El chinche apestoso marrón marmolado (Halyomorpha halys) es un insecto invasor y una amenaza muy grave para la agricultura de Oregon. Se alimenta de más de 100 plantas incluyendo plantas agrícolas y ornamentales de importancia económica. Esta tarjeta presenta con fotos y descripciones para ayudar a identificar el chinche apestoso...
The brown marmorated stink bug (Halyomorpha halys) is an invasive insect and a very serious threat to Oregon agriculture. It feeds on more than 100 plants, including economically important crops and ornamentals. This card has photos and descriptions to help identify brown marmorated stink bugs and distinguish them from other...
This publication provides a framework, general recommendations, and rationales to aid onion growers interested in maximizing their land use and crop yield through drip irrigation.
This publication provides a framework, general recommendations, and rationales to aid potato growers interested in maximizing their land use and crop yield through drip irrigation. Discusses bed conformation, pumps and filters, system maintenance, microirrigation criteria, and chemigation.
This publication provides a framework, general recommendations, and rationales to aid hybrid poplar growers interested in maximizing their land use and wood production through drip irrigation.
Rodents are an increasing problem in fields and pastures. Birds of prey play a vital part in integrated pest management of rodent pests. This publication succinctly describes the value to farmers and ranchers of barn owls and American kestrels for rodent control, and ways to help build up local populations...
As part of a larger project funded by the Joint Fire Science Program, this annotated bibliography and accompanying subject area guide were created to support development of a compendium of social science research findings from 2000 – 2010 related to fire-adapted communities. In total, 242 articles were selected for analysis.
Potential impacts from sound transmitted by wave energy conversion (WEC) devices on marine ecosystems are not well understood and remain an important environmental concern for the developing marine hydrokinetic renewable energy industry. On August 22, 2012 the Northwest National Marine Renewable Energy Center (NNMREC) began a test deployment of a...
From 6 April – 19 September 2011 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius nivosus nivosus) along the Oregon coast. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek,...
This publication incorporates 20 years of field research by OSU faculty comparing two grass-seed residue management methods: full straw load (straw is chopped and left on the field) and clean nonthermal (straw is baled and removed from the field). Comparison includes discussion of seed yield and quality, nutrient management considerations...
This publication describes results of field research on the performance of hard red winter wheat cultivars in a late-planted no-till fallow system in the low-precipitation zone of Oregon and Washington.
This report is intended to help transportation and environmental professionals apply ecological principles early in the planning and programming process of highway capacity improvements to inform later environmental reviews and permitting. Ecological principles consider cumulative landscape, water resources, and habitat impacts of planned infrastructure actions, as well as the localized...
Pesticides can be effective in controlling pests, but they can also be dangerous to pets. This publication describes hazards to pets from use of molluscicides, insecticides aimed at fleas and ticks, rodenticides, and herbicides. There are also descriptions of ways to control these pests without using pesticides. The publication is...
This paper presents a parallel implementation and validation of an accurate and efficient three-dimensional computational model (3D numerical wave tank), based on fully nonlinear potential flow (FNPF) theory, and its extension to incorporate the motion of a laboratory snake piston wavemaker, as well as an absorbing beach, to simulate experiments...
A study to review the status and distribution of vascular plants at Lewis and Clark National Historical Park was initiated in 2009 and completed in 2010 by the Oregon Natural Heritage Information Center at Oregon State University. This study built on previous inventories conducted under the National Park Service‘s Inventory...
Due to various reasons the previous investigator decided to pull out the crop level trials from the original experiment designed in 2010 season. However, the irrigation field experiments implemented in the 2010 season continued in 2011, in order to find out the impact of varied deficit irrigation regimes on vine...
Wine aroma is one of the most important aspects of wine quality and yeast contribute a significant amount of the volatile aroma compounds in wine. However, our understanding of the contribution of specific yeast to Pinot noir aroma is still limited. In particular, the contribution of non-Saccharomyces yeast species present...
Presents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, and cherries. Provides (1) spray program for nutrients; (2) dilutions table for wettable powder and liquid products; (3) natural enemy impact guide for tree fruit pesticides; (4) illustrated bud...
Alerts people who visit, live, or work in certain areas of California and Oregon about a serious plant disease called Sudden Oak Death, and asks them to take steps to prevent spreading the disease. Gives action steps, shows disease symptoms on various host plants, and gives numerous sources for more...
This guide focuses on making choices to improve quality of life and reduce negative impacts on the environment. Contains information and activities to help you be more thoughtful about lifestyle choices and create your personal version of sustainable living.