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)
Currently, the emerald ash borer has been found in trees only in Washington County, where a quarantine prohibits moving ash (Fraxinus) or fringe tree (Chionanthus) wood in or out of the area.
While relatively healthy, forests in western Oregon face threats from climate stress, insects and disease. Here's a look at forest management strategies to cope with those threats and keep the state's forests healthy.
The Cascadia Earthquake, when it occurs, will cripple western Oregon's communications and infrastructure. These tips will help residents manage through what could be months of no electricity and other modern ...
Collection of forage resources, mostly for Coastal Oregon regions. Includes studies on fiber digestibility, phosphoric soil, rations, and cost/benefit of growing and buying locally grown forages.
This is a bilingual publication (English and Spanish) for landscape workers and the public to help them protect Oregon birch trees from this damaging pest. Includes insect identification, host plants, signs and ...
Getting tree seedlings into the ground is simple: green side up, brown side down. The most important work comes beforehand with proper care and choosing a site that has lots of sunshine, good drainage and room to grow.
Lauren Grand |
Nov 2018 |
Article
Photo Credit: Whitney Cranshaw, Colorado State University, Bugwood.org (Cropped from original)
Q: I had an arborist out because one of my birch trees had died and needed removal. He said it was the bronze birch beetle and that it was beginning to affect a second birch. He said it could be treated with a ...