The waving-wand system of broadcast chemical application implemented in swath widths to 40 ft (>12 m) is capable of simulating broadcast deposition patterns for herbicides similar to those delivered by helicopter. Drop sizes vary from center to edge of swaths, which can range from >1,000 to 5,000 microns (μ). Any...
‘Sacajawea’ (OSU 540.130) was developed and evaluated at Oregon State University, Corvallis, Oregon, and was released in February 2006. Compared to ‘Barcelona,’ ‘Sacajawea’ is a slightly smaller tree but has a higher yield efficiency, a higher percent kernel, fewer kernel defects, and smaller nuts. Nuts mature and fall free of...
'Santiamʼ (OSU 509.064) was developed and evaluated at Oregon State
University, Corvallis, Oregon, and it was released in February 2005. This cultivar has complete resistance to eastern filbert blight (EFB) caused by Anisogramma anomala (Peck) E. Müller. Resistance is conferred by a single dominant gene from ʻGasaway.ʼ Compared to ʻBarcelona,...
"'Yamhill' (OSU 542.102) was developed and evaluated by the hazelnut breeding program at Oregon State University, Corvallis, Oregon, and was released in January 2008. Trees of 'Yamhill' are completely resistant to eastern filbert blight (EFB) caused by Anisogramma anomala (Peck) E. Müller. Compared to 'Barcelona', trees of 'Yamhill' are smaller...
Published June 2001. 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
Published June 2001. 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
Published June 2002. 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
Published July 2003. 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
Published June 2003. 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
Published March 2004. 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
Oregon’s Protection from Fire Program is the largest program within the Oregon Department of Forestry (ODF). The program provides wildfire protection on about 15.8 million acres of mostly privately-owned Oregon forestland. Private and state interests in protecting Oregon forests from fire have been intertwined since the early 1900s when ODF...
"With the implementation of the recreational shellfish license in 2004, ODFW decided to re-initiate a study of the recreational component of the Dungeness crab fishery. The pilot study was performed to assess the effort and catch of recreational Dungeness crabbers on the Columbia River estuary during the fall and winter...
Published June 2005. 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
Published June 2006. 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
This publication is offered as a reference to Integrated Pest Management (IPM) resources available to Oregon growers. It highlights university, federal, state, and private services and resources that provide support to growers in the implementation of IPM programs. The Guide consists of five sections: • An introduction to the National...
Published June 2007. 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
This report was presented to the Finance and Administration Committee of PICES at the 16th Annual Meeting on October 31, 2007. It will appear as part of the Committee's annual report in the 2007 PICES Annual Report. Elements of the report were presented at the 33rd IAMSLIC Annual Conference with...
This report provides a quick overview of Oregon’s recent crop and livestock production. The following pages include 2008 preliminary estimates for production and value, and revised estimates for 2006 and 2007. Preliminary or first estimates are revised as needed when updated information is received. All data reported here were in...
This report was prepared for the 2009 Range Field Day held at the Columbia Basin Agricultural Research Center in Pendleton, Oregon. It contains research reports on molecular identification of cyst nematodes in wheat and barley; hard red winter wheat production; club wheat breeding in Oregon; growing canola on wide row...
In the past several years, international interest in gas hydrates in marine sediments has
increased considerably because of increasing recognition that the large volume of gas stored
in hydrates or trapped beneath them is a significant fraction of the global methane budget,
and may therefore be a source of energy...
This publication is designed to help you learn more about agricultural cooperatives or to help you think through the process of organizing and
operating such a business. While the focus is on creating a new
cooperative, many of the ideas may be of interest to those thinking
about reorganizing or...
This case study describes in detail how to conduct a performance review of forest product industries. This case study uses the paper industry for illustration, but the principles and methods presented are such that you will be able to conduct a performance review in any industry.
Planting trees in riparian areas is increasingly common in Oregon as part
of efforts to improve fish habitat, water quality, and other riparian functions. Yet tree survival and growth are poor in many projects, and some fail outright.
"Infestations of the spotted wing Drosophila fly (Diptera: Drosophilidae), an exotic pest, have been found in Oregon fruits in 13 counties. Of the 3,000 species of Drosophila, commonly known as vinegar flies, approximately 175 are known in North America. Two of these known species have been found to be harmful...
A systematic review of evidence was conducted concerning the effects of large wood placement on salmonids. In contrast to a general literature review, a narrowly focused question was targeted. The question was formulated before the review commenced and specified the subject, treatment, and outcomes of interest. The primary review question...
The cards in this guide are designed to help
you quickly learn the main groups of natural
enemies of crop and garden pests, their
predacious activity, and tips for observing them.
Photographs are of the most common species in
the Pacific Northwest.
Published 2000. 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
This Practical Guide is a companion to the video program Communication Strategies for Fire Management: Creating Effective Citizen-Agency Partnerships. The video is designed to assist land management personnel in working collaboratively with citizens for community fi re and fuel reduction strategies. The DVD uses real world examples from successful agency...
The purpose of this project was to conduct a preliminary examination of the environmental use of plants in Oregon by gauging the breadth of opportunities and challenges faced by growers, users, and researchers who are involved in the general area of the environmental uses of plants. More specifically, the project...
This Primer is intended to serve Extension personnel and community leaders as they work in local communities facing decisions with long-range implications. Some communities may engage in long-range planning without any compelling reason to do so, except that they believe it is a good thing to do. More communities will...
This primer is intended to serve Extension personnel and community leaders as they work in local communities facing decisions with long-range implications. Some communities may engage in long-range planning without any compelling reason to do so, except that they believe it is a good thing to do. More communities will...
Published February 2000. 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
End-user programmers’ code is notoriously buggy. This problem is amplified by the increasing complexity of end users’ programs. To help end users catch errors early and reliably, we employ a novel approach for the design of end-user debugging tools: a focus on supporting end users’ effective debugging strategies. This paper...
"The Marbled Murrelet (Brachyramphus marmoratus) is a small diving seabird of the Alcid family which is on the Federally Threatened Species list, and is state listed as endangered or threatened in California, Oregon, and Washington (Nelson, 1997). Because their nests are dispersed and difficult to locate within old forests on...
"The Marbled Murrelet (Brachyramphus marmoratus) is a small diving seabird of the Alcid family which is on the Federally Threatened Species list, and is state listed as endangered or threatened in California, Oregon, and Washington (Nelson, 1997). Because their nests are dispersed and difficult to locate within old forests on...
The summary data reports academic standing of undergraduate students at the end of each term, Fall 2001 (200201) through Winter 2006 (200602) showing academic reinstatements as of the beginning of the term, arranged by class.
Rhododendrons and blueberries are popular
plants in home gardens in western Oregon and
Washington. Both are easy to grow in most
gardens, but problems with growth can occur if
the soil is not sufficiently acidic. Even in the
naturally acidic soil west of the Cascade Mountains,
soil often is not...
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...
Soil acidification sometimes is necessary for optimum plant growth
west of the Cascade Mountain Range. Commercial producers of
blueberries, azaleas, rhododendrons, and other ornamentals may
need to reduce soil pH for optimum production.
Soil acidification is best performed prior to planting; it is much
more difficult in established plantings. No...
The comfortable, sunny climate and numerous
recreational activities east of the Cascade Mountain
Range in Oregon and Washington attract many
new residents each year. Unfortunately, these new residents
often fi nd that their previous gardening experience doesn’t
translate into success in their new environment. Long-time
residents also are frustrated by...
We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on R/V Wecoma during cruise W0105c (23 May to 13 June 2001). The cruise was a component (Survey I) of the Coastal Ocean Advances in Shelf Transport (COAST) experiment. The ADCP was an RD Instruments hull-mounted 153.6-kHz narrowband...
We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on
R/V Wecoma during cruise W0108a (6-25 August 2001). The cruise was a component (Survey
II) of the Coastal Ocean Advances in Shelf Transport (COAST) experiment. The ADCP was an
RD Instruments hull-mounted 153-kHz narrowband unit. Data were...
We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on
R/V Wecoma during cruise W0301b (19 January - 3 February 2003). The cruise was a component
(Survey III) of the Coastal Ocean Advances in Shelf Transport (COAST) experiment. The
ADCP was an RD Instruments hull-mounted 153-kHz narrowband...
This report establishes an industry knowledge base for existing anchoring and mooring techniques as applied to wave energy conversion (WEC) devices in and around Oregon. This report on anchoring and mooring techniques is derived from the cumulative experiences of engineers and scientists with many years of experience analyzing, designing and...
Adults often find an aging parent needs support at a time when their own lives and responsibilities are the most complicated. You may feel pulled in several directions—raising your children, being supportive to a spouse, helping parents, and/or working outside the home—all at the
same time. It’s not unusual to...
Phosphorus is an essential element for growth and reproduction of plants and animals. Agricultural enterprises often provide supplemental P to enhance plant and animal performance. Supplemental P inputs are provided in the form of fertilizer or manure for crops, and in the form of feed additives for animals.
Published March 2000. 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
Published October 2009. Reviewed December 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Flexible cropping systems allow for an opportunistic change in an established rotation. Plant-available soil water is the most reliable indicator of potential yield.
Euphorbia lagascae has been recognized as one of the more promising potential new industrial crops for temperate latitudes (Roseberg, 1996). In the late 1950s and early 1960s the USDA analyzed many plant species in search of novel chemical compounds. They first recognized that E. lagascae (Spreng.), Euphorbiaceae (euphorb or spurge...
Euphorbia lagascae (Euphorbiaceae- ‘spurge family’) has been recognized as one of the more promising potential new industrial crops for the drier regions in the temperate zone
(Roseberg, 1996). In the late 1950s and early 1960s the USDA analyzed many plant species in search of novel chemical compounds. They first recognized...
Por lo general, el agua subterránea extraída de los pozos de agua es buena para beber. A medida que el agua pasa por las diferentes capas del suelo se va purificando poco a poco. Los organismos que causan enfermedades, como bacteria y viruses, van siendo filtrados y digeridos por animalitos...
Alfalfa is capable of producing high yields of forage when grown on deep, well-drained soils. Good management practices are essential if optimum fertilizer responses are to be realized. These practices include use of recommended varieties, selection of adapted soils, weed control, disease and insect control, good seedbed preparation, proper inoculation...
Alfalfa is capable of producing high yields of forage when grown on deep, well-drained soils. Good management practices are essential if optimum fertilizer responses are to be realized. These practices include use of recommended varieties, selection of adapted soils, weed control, disease and insect control, good seedbed preparation, proper inoculation...
Watering a lawn involves several factors such as laying out the sprinklers and valves, trenching, laying pipes, cables, etc. The primary goal is to ensure uniform watering subject to various constraints. We present some abstract problems involving sprinkler layout and some solutions with theoretical worst case bounds on their performance....
Para mejorar un jardín o huerto, a menudo hay que empezar con la tierra. Si su tierra no es buena, piense en mejorarla. La adición de materia orgánica es una de las mejores maneras de mejorar el suelo. En el suelo arenoso, la materia orgánica retiene nutrientes y agua. En...
For several years, the profitability of farming in the Columbia Basin has been diminishing, as consistently low grain prices have not kept pace with increases in farming costs. The costs of labor, fuel, machinery, fertilizer, pesticides, transportation, accounting, and brokerage fees have combined to cause many small grain producers to...
Did you know that the American kestrel is the smallest falcon in
North America and the second smallest falcon in the world? The average
length of the American kestrel is 9 to 12 inches, about the size of a robin.
The American robin, Turdus migratorius, is one of the best known
birds in North America. Robins are the largest member of the thrush family. Thrushes have large eyes, long legs, and strong bodies. Robins are known for their habit of feeding on earthworms in lawns and for the song they...
"There is growing interest in odor and gaseous emissions from livestock operations because of concern about global warming and enforcement of the Clean Air Act. This bulletin provides and evaluates best management practices for the control of ammonia lost to the air on dairy farms. Benefits are based on an...
This annotated bibliography is a response to widespread interest in stream habitat improvement in the Pacific Northwest by land managers, governmental and nongovernmental organizations, and the lay public. Several guides to stream habitat improvement have been written in the past, but may not be easily accessible to people from diverse...
Tree damage following dust abatement/road
stabilization treatment was evaluated on 12.5
miles of the Selway River Road, Nez Perce
National Forest. Calcium chloride was applied in
June of 2000, mostly at a rate of 51b/yd2 (18,600
lb./acre) or 6.9 lb/yd 2 (25,700 lb/acre). 1,189
trees up to 30 feet from...
Published February 2009. 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
Vineyard managers must decide on the timing and amount of irrigation. In Oregon the need for irrigation differs greatly year to year and field to field based on micro climate, soil, root development, plant health, and root stock. We suggest the use of leaf water potential as a useful management...
"Recent concerns have been raised by commercial crab interests relating to the size and character of the recreational fishery for dungeness crab in ocean waters off Oregon. In response to those concerns, in May of 1999 the Oregon Department of Fish and Wildlife's Ocean Sampling Project began counting the number...
This pictorial guide is primarily intended to serve as a backdrop for field tours of central Oregon that involve topics surrounding wildland fire. It also is designed to provide an
overview of the role of fire in the major ecosystems characteristic of this region. Topics covered include fire history, fire...
The report below and displays in the lobby summarize the first-year activities of the Oregon Vineyard Soil and Nutrition Initiative. This work has laid the foundations for OVID, the Oregon Vineyard Database, which will fill the second year of OVSNI and is discussed in the final sections.
This paper presents an overview of cogeneration, also known as combined heat and power (CHP). The technology of cogeneration is described and the three primary cogeneration processes are discussed. The transition between parallel operation with the utility and stand-alone operation is discussed. The tradeoff between a synchronous and an induction...
"Each year, the grant support varying numbers of teachers to investigate spreadsheets with the intent of integrating teaching mathematics/science with spreadsheets. These teachers were taught to focus on teaching about key concepts of spreadsheet design while they also taught with the spreadsheets as tools for learning mathematics/science. As part of...
The goals of Oregon livestock producers are parallel to those of the American Dream—to enjoy an occupation of raising livestock, provide for their families, be independent, and avoid unwarranted criticism and interference. For Oregon livestock producers to stay in business and remain on the ranch, they must be efficient, responsible...
Annual ryegrass varieties such as ‘Gulf’ are grown for seed on poorly drained soils of the south Willamette Valley, including Dayton, Concord, and Bashaw. Recommendations in this guide are based on research throughout this production area. Management practices from seedbed preparation to harvest must be performed in an appropriate and...
Section I contains an introduction to the subject of Scientific Evidence Review. Section II reviews Oregon state mandates to use “best available science” in policymaking and summarizes ODF efforts to address these mandates. Section III provides an overview of Systematic Evidence Reviews and how they are conducted in the fields...
Armyworms are the larvae (caterpillars) of the moth Pseudaletia unipuncta Haworth. This insect is a serious pest of turf, forage, and seed grasses; small grains; and corn throughout North America. Armyworms can cause sudden, extensive damage to these grasses and grasslike plants. Note that the armyworm does not feed on...