Healthy trees are beneficial to our environment and our property values - but how do we determine if a tree is healthy? This publication briefly discusses common tree health problems and outlines a p ...
In 2007, an herbicidal control study was initiated on rangeland infested with ventenata (Ventenata dubia (Leers) Coss & Durieu) near Anatone, Washington. Two rates of imazapic were applied in the e ...
This module covers forest diseases that are common in Eastern Washington, including root diseases, foliar diseases, heart rots, parasitic plants, and introduced pathogens. The module includes informat ...
This module explains what invasive plants and noxious weeds are, the impacts they have on forest resources, and how Washington regulates particular noxious weeds. The module also covers some general w ...
This module covers the fundamental concepts of forest health, including how forest health damage happens, what it means to have a healthy forest, and management principles for maintaining forest healt ...
This module will introduce you to the most common insects that impact forests in Eastern Washington, including bark beetles, wood borers, defoliating insects, and some exotic forest insect pests that ...
This module will introduce you to the most common insects that impact forests in Western Washington, including bark beetles, wood borers, defoliating insects, and some exotic forest insect pests that ...
Explains the different types of resistance that weeds can develop and how to avoid making the problem worse. Gives examples of common Northwest weeds and their herbicide resistance. Unfolds to a multi ...