A soil nitrate test measures the concentration of nitrate in the soil at a specific moment in time, including nitrate originating from organic inputs, fertilizer, and soil organic matter. This publication describes ...
Dan M. Sullivan, Nick Andrews, Aaron Heinrich, Ed Peachey, Linda Brewer |
Aug 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
Four Extension faculty and one research assistant gave presentations at the Farwest Show, which annually draws an estimated 5,000 attendees to the Oregon Convention Center and nursery tours.
Tansy ragwort, an invasive weed that can harm certain types of livestock, is making a comeback in western Oregon. Find out how to control it and protect your animals.
Shelby Filley, Andy Hulting, Gene Pirelli, Eric Coombs |
Aug 2011 |
Article
Presentation by Silvia Rondon on Insect Ecology. Topics covered include types of metamorphosis, effects of temperature on development, how temperature affects SWD and potato tuberworm.
Silvia I. Rondon |
Apr 2010 |
Presentation
Photo Credit: Hulsh Of Pictures - Adobe Stock (Cropped from original)
Q: We have wheat planted and along our fence line we have an infestation of tansy ragwort. Is it a good time to cut the flowers off, bag them, and leave the plant; or should I spray it? The neighbor across the road has...
Plants causing liver disease and photosensitization (sensitivity to sunlight) are often grouped together, as photosensitivity is often a secondary symptom of liver disease cause by poisonous plants.
Mylen Bohle, David Hannaway, Andy Hulting, Karin Neff |
Apr 2018 |
Educational gallery