From the myth of collapsing root balls to the myth of compost tea - learn the facts about a range of tips you may have heard through the years about healthy soil, pretty mulch, and more.
Discusses how to identify and control Pacific poison-oak and western poison-ivy, and how to prevent exposure to the plants' oily substance, urushiol, which can cause an allergic contact dermatitis.
Brooke Edmunds, Lauren Grand, Alicia Christiansen, Andy Hulting |
Nov 2022 |
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.
Aerated compost teas have no scientifically documented effect as pathogen suppressors. Overuse and runoff of compost teas could conceivably contribute to water pollution. There is no “silver bullet” for plant health problems caused by poor soil health and improper plant selection and management
Linda Chalker-Scott, Ph.D. |
Mar 2015 |
Online resource
Illustration by Eiko Goto. (Cropped from original)
Fruit trees and grapevines have been grafted for centuries but the grafting of vegetable plants is relatively new. It started in 1927 in Japan and has since grown to be a common practice with environmental benefits.
Toshihiko Nishio, Alice Formiga (editor and translator), Shinji Kawai (editor and translator) |
Jul 2018 |
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.
Q: The top (grafted part) of our dwarf cherry tree died. We have other cherry trees and would like to graft a new top on it. What is the best type of graft to make?