8 thoughts on “ Douglas Firs ”

1. Douglas-fir beetles prefer weakened or recently downed trees. You can reduce the damage by keeping tree vigor strong and Douglas-fir blowdown to less than four inch diameter (or larger) Douglas-fir trees per acre. The Douglas-fir beetle is most often found following extensive blowdown of mature trees.

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2. Douglas-fir (Pseudotsuga menziesii), perhaps the most common tree in Oregon, is the most important conifer in the state because of its ecological and economic significance. The Oregon legislature recognized this when it designated Douglas-fir the official state tree in Eight of ten conifers west of the Cascades are Douglas-firs.

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3. Diagnosis table — Douglas-fir, oak and pine Note: These tables list commonly encountered signs and symptoms and likely causes, but not every possible symptom or potential cause is noted. Douglas-fir .

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4. The Douglas-fir, Pseudotsuga menziesii, is not a true fir, nor is it a hemlock, even though " Pseudotsuga " means false hemlock. It is in a separate genus. This widespread conifer occurs often in pure stands as well as mixed forests. This species has narrow pyramidal tops and long straight trunks.

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5. Douglas Firs, the G. Van Hellemont-fronted indie band, have announced their 3rd studio album. Hinges of Luck is out October 13 via Excelsior Recordings.

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6. Douglas-fir is one of the stronger of the softwoods and is widely used for structural purposes. The sapwood is white to pale yellow while the heartwood is orange-red with high contrast between earlywood and latewood. It is straight grained and moderately hard.

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7. Douglas fir trees (Pseudotsuga menziesii) are also known as red firs, Oregon pines and Douglas spruce. However, according to Douglas fir information, these evergreens are not pines, spruce, or even true firs. But they are tall, beautiful conifers native to the Pacific Northwest.

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8. Douglas firs are conifers, which means they produce seeds in cones rather than in flowers. The seeds have a single wing and are dispersed by wind. Douglas fir seeds provide food for a number of small mammals, including chipmunks, mice, shrews, and red squirrels. Bears eat the sap of these trees.

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