Discusses three major types of madrone diseases--foliage, branch dieback and trunk canker, and root--and ways to minimize and manage. Discusses insect pests of madrone: fall webworm, western tent caterpillar, aphids, and leaf miners. Color photos. Sources of further information.
Gives basic facts about a serious plant disease called Sudden Oak Death, caused by the pathogen Phytophthora ramorum. Describes risk of disease to forest health and to commercial nursery industry. Shows disease ...
Designed to help those preparing for the wood preservative pesticide licensing examinations administered by the state departments of agriculture in the Pacific Northwest. Describes specific wood pests, including various ...
Gary Thomasson, Joseph Capizzi, Frank Dost, Jeffery Morrell, Donald J. Miller |
Nov 2015 |
Extension Catalog publicationPeer reviewed (Orange level)
Discusses options for managing major insect pests and diseases of conifers in Oregon forests: bark beetles, wood borers, and ambrosia beetles; defoliators; aphids, adelgids, and scale insects; terminal and branch ...
Paul T. Oester, David C. Shaw, Gregory M. Filip |
Jan 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
Longer, hotter summers and changing climatic conditions means that many of our newly planted native forest seedlings are stressed. Should you water native forest tree seedlings to help them make it through?
The mountain beaver is a medium-sized rodent of the western Pacific Northwest. Mountain beavers cause damage to forest regeneration by clipping or girdling seedlings or saplings or both, and undermining roots. Methods...
Selecting roses for landscape use may seem like an impossible task, but with a few key elements in mind, you can select a rose or a group of roses to complement your new or current landscape.
Barbara McMullen |
May 2007 |
Article
Photo Credit: maxbelchenko - Adobe Stock (Cropped from original)
November gardening tasks include raking up leaves and debris and covering plants for the winter. November is also an ideal time for maintenance on lawnmowers and draining sprinkler systems. Learn more in this guide.