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The Western Oregon and Washington Pasture Calendar

This publication describes—by climatic zone—perennial pasture plant growth and how management actions can affect growth, both positively and negatively. Optimal management of forages by season is the basis for the Pasture Calendar.

Steve Fransen, Gene Pirelli, Marty Chaney, Larry Brewer (retired), Scott Robbins | Dec 2017 | Extension Catalog publication Peer reviewed (Orange level)

Teff: A New Warm-Season Annual Grass for Oregon

Describes characteristics and growing requirements of teff (Eragrostis tef [Zucc.], Poaceae) as a hay and forage crop in Oregon. Discusses hay quality and use; yields and varieties; and how to plant, fertilize, irrigate, cultivate, and harvest teff.

Steve Norberg, Richard Roseberg, Brian Charlton, Clinton Shock | Mar 2021 | Extension Catalog publication Peer reviewed (Orange level)

Armyworms in Grass Pastures and Corn in Western Oregon

Discusses identification, life cycle, monitoring, action thresholds, biological control, organic controls, and chemical controls. Includes color photos for identification.

Amy Peters, Glenn Fisher | Nov 2006 | Extension Catalog publication Peer reviewed (Orange level)

Spikeweed

Can spraying this weed at the right time keep it out of our fields?

Mary Corp | Oct 2018 | Article

Poison hemlock and Western waterhemlock: deadly plants that may be growing in your pasture

Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.

Scott Duggan | Jun 2018 | Article

How to measure pasture productivity and capacity

The monthly grazing capacity of a pasture can be stated as animal unit months, AUM for short. It is calculated by estimating the amount of forage an animal eats each day — 2.5% to 3% of its body weight — times 30 days.

Shelby Filley | Jul 2020 | Article

Endophyte Toxins in Grass and Other Feed Sources: Risks to Livestock

Many varieties of tall fescue and perennial ryegrass are infected with a fungal endophyte. Endophytes produce bioactive compounds that, while beneficial to the host plants, can be toxic to livestock that consume ...

Gene Pirelli, Nicole Anderson, A. Morrie Craig, Carolyn A. Young | Nov 2016 | Extension Catalog publication Peer reviewed (Orange level)

Improving calf performance by extending the grazing season with warm-season grasses and brassica forages

This research project set out to determine whether grazing cow-calf pairs on warm season grasses and brassica pastures would extend the grazing season and positively affect calf weaning weights and other characteristics.

Shelby Filley, Janice Hunter | Dec 2019 | Article

Nutritional value of pasture forages changes through the growing season

Assess the nutritional value of forages in pasture and hayground.

Shelby Filley | Apr 2024 | Article Peer reviewed (Gray level)

Tracking weeds is first step in controlling them

When winter approaches, it’s time to check your weed control plans. Noxious weeds are best controlled if you track them carefully. Weed mapping and weed calendaring are two activities important to tracking weeds so that you can properly control them. Here are a few tips to get you started.

Shelby Filley | Nov 2021 | Article