This publication provides direction on estimating soil moisture by the "feel and appearance" method; taking a some soil and rolling it up in a ball then squeezing it between your thumb and forefinger to form a ribbon and noting how it appears and feels. Compare what you see with photographs and/or charts to estimate percent water available and the inches depleted below field capacity.
This report includes preliminary data for the second of a three-year study. Since this year was a record drought year, results could vary from a normal rainfall year. Finalized data and observations will be released in future as peer-reviewed studies, reports, and extension articles. For more information, please visit the RDFA project page. .
Designed for both commercial and home growers. Explains how to determine whether the soil is appropriate for planting walnut trees. Covers different types of walnuts, including Franquette, Spurgeon, Hartley, Manregian, ...
Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.
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.