Describes abiotic injuries caused by weather, soil, and human behavior. Provides basic information on how to understand abiotic injures, presents common examples of abiotic injury, and discusses management control practices.
Trees all over Oregon are displaying signs of poor health. People are quick to blame insects, but insects are rarely the underlying cause of the problem. Drought and other stressors can make trees vulnerable to pests and disease.
How to identify, manage, and prevent forest tree stem (trunk) decay. Also discusses ecologic roles of decay and decay fungi and economic losses from tree wounding and decay. Color photos throughout. Preview available online. Full version available to purchase.
You may have encountered white, segmented “worms” or grubs when chopping firewood and wondered what they were. Common questions include, did they kill my tree? And are they a danger to other trees? The quick answers are no, and no.
Forage quality of common pasture weeds was determined through laboratory testing to compare feed value of weeds to desirable forage species and nutrient requirements for grazing livestock.
Shelby Filley, Andy Hulting, Amy Peters |
May 2010 |
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