Oregon ash grows along the streams and wetlands of western Oregon and Northern California, where it provides important wildlife habitat. But these trees are threatened by the emerald ash borer, an insect pest that...
David C. Shaw, Jay W. Pscheidt, Alexander Gorman |
Jan 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
Photo: Oregon State University (Cropped from original)
Poison oak plants contain a chemical that causes a severe rash. Learn how to spot a plant, safely remove, and clean your clothes, gear and skin afterward to prevent a rash.
Jun 2010 |
Article
Credit: vintagepix - stock.adobe.com (Cropped from original)
Retaining walls are popular features in commercial and home landscaping projects. They can be self-installed, making them very cost efficient. The following is a do-it-yourself guide to installing a retaining wall using a designed block system.
Silage-making has been used to reduce the concentrations of toxins in a variety of crops. But in the case of poison hemlock, the opposite is true — making silage out of it actually increases one of its toxic alkaloids.
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
Companion planting can attract beneficial insects, serve as a trap crop for pests, improve soil health, and much more. This list was created by a retail nursery employee and offers some suggestions of herbs and flowers that can be used as companions to vegetable crops.
Q: The straw mulch I used at the end of summer to suppress the weeds doesn't seem to be working. Should I till it and cover with plastic? black or clear? Is there something better. Or should I add more straw. I could probably bring some cardboard home from work. Is this a healthy option?
These publications are shared to teach farmers and agriculturalists how to properly control weeds and poisonous plants and pests. Handbooks and management fact-sheets are provided as well as a list of common pasture weeds, poisonous plants, and other pests that affect pastures.
Bee gardens involve matching plants that bloom at different times, to bees that emerge at different times. And not all bee species go to all flowers. In this episode we hear about how all these factors come together in Portland gardens.