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.
Outlines the basic principles and and safety issues of cutting down (felling) and cutting up (bucking ) trees. Covers clothing and equipment, timber-felling plans, evaluating tree-felling conditions and the target tree...
Plants causing liver disease and photosensitization (sensitivity to sunlight) are often grouped together, as photosensitivity is often a secondary symptom of liver disease cause by poisonous plants.
Mylen Bohle, David Hannaway, Andy Hulting, Karin Neff |
Apr 2018 |
Educational gallery