It is common for people in interior Alaska and corresponding areas of northwestern Canada to use the name cottonwood when referring to one widespread variety of deciduous tree.
A tree's age can be easily determined by counting its growth rings, as any Boy or Girl Scout knows. Annually, the tree adds new layers of wood which thicken during the growing season and thin during the winter. These annual growth rings are easily discernible (and countable) in cross-sections of the tree's trunk. In good growing years, when sunlight and rainfall are plentiful, the growth rings ...
Burls, spherical woody growths on the trunks of spruce, birch and other trees, are commonly found throughout wooded parts of Alaska.
Q: We live on 6.5 acres and have lost about a dozen oak trees in the past year. I don’t know why. Bark just falls off their trunks. I see small holes in the wood of the trunks. One Texas A&M Extension ...
The emerald ash borer is a destructive, non‐native, wood‐boring pest of ash trees. EAB is a significant threat to urban, suburban and rural forests, killing ash trees within two to five years after ...
AOL: How to Tell If Emerald Ash Borers Are Killing Your Trees Before It’s Too Late
Like many trees, ash trees undergo leaf shedding each fall and winter. Unlike other trees, ash trees are specifically targeted by a pest: the emerald ash borer. These creatures are emerald ash borers, ...
How to Tell If Emerald Ash Borers Are Killing Your Trees Before It’s Too Late
The Mediterranean oak borer leaves small, round holes in the cut face of wood. The Mediterranean oak borer is native to Europe, western Asia and northern Africa. The insect tunnels beneath a tree’s ...