Q: Drought was stated as what caused the trees' death, only dying pine trees were pictured. No mention of the boring insects that kill pine trees, was that omission intentional? No pictures of dying deciduous trees either. I have seen dead pine trees in peoples' yards where their lawn is nice and green - they water the lawn and trees - yet the tree is dead. Is drought or boring insects the reason for so many dead pine trees in Lane County?
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This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient supply.
By tapping nutrients from bedrock, red alder trees play a key role in healthy forest ecosystems.
Scientists have developed a new approach to modeling potentially drought-prone soils in Pacific Northwest forests, which could aid natural resource managers to prepare forested landscapes for a changing climate.
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.
This publication outlines the role of forest organic debris in inland Northwest forests. Recommends how to maintain forest soil productivity and improve wildlife habitat while reducing wildfire and insect-pest hazards. Tells how to estimate amount of organic debris in a stand. Full-color photos and illustrations.
A two-minute overview of the Extension Forestry and Natural Resources program.
Most “sick tree” problems can be traced back to underlying stresses that have reduced the tree's vigor, making it more vulnerable to diseases or insect pests.