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The blue spruce (Picea pungens), also commonly known as Colorado spruce or Colorado blue spruce, is a species of spruce tree native to North America in Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming. [4] It is noted for its blue-green colored needles, and has therefore been used as an ornamental tree in many places far beyond its native ...
Rhizosphaera needle cast is a common fungal disease of Colorado blue spruce, which eventually kills mature trees. Once the foliage is removed, it will not regrow, even if sunlight now reaches the ...
Dendroctonus rufipennis, the spruce beetle, is a species of bark beetle native to British Columbia, Newfoundland and Labrador, Nova Scotia, Ontario, Quebec, Northern Manitoba, the Yukon, Alaska, Colorado, Wyoming, Montana, and Maine. They are known to destroy forests of spruce trees [1] including Engelmann, White, [2] Sitka, and Colorado blue ...
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of Leucostoma canker (also known as Cytospora canker or spruce canker), a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).
Prettiest Christmas Tree: Colorado Blue Spruce A Western species, the Colorado Blue spruce is known for its unique bluish-gray hue. Other benefits: limited shedding and an attractive symmetrical ...
The 64-foot Colorado blue spruce, donated by the Yeager family from their home on West Washington Boulevard, dwarfs the most recent city Christmas trees. Last year's tree stood 38 feet tall, and ...
Sitka spruce: Picea sitchensis: 1962 [2] [3] American Samoa: None [4] Arizona: Blue palo verde: Parkinsonia florida: 1954 [5] [6] Arkansas: Loblolly pine: Pinus taeda: 1939 [7] California: Coast redwood: Sequoia sempervirens: 1937 [8] [9] Giant sequoia: Sequoiadendron giganteum: Colorado: Colorado blue spruce: Picea pungens: 1939 [10 ...
The most commonly grown species include Eastern White pine, Virginia pine, Scotch pine, Colorado Blue spruce, Norway spruce, Serbian spruce, White spruce, Balsam fir, Grand fir, Frasier fir, Canaan fir, Noble fir, Turkish fir, White fir, Blue Ice Carolina and Sapphire cypress (both are sterile hybrids of the Arizona cypress), Leyland cypress ...
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