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An Eastern Hemlock branch at the Kortright Centre for Conservation. Tsuga canadensis, also known as eastern hemlock, [3] eastern hemlock-spruce, [4] or Canadian hemlock, and in the French-speaking regions of Canada as pruche du Canada, is a coniferous tree native to eastern North America. It is the state tree of Pennsylvania. [5]
In the riparian habitats surrounding streams, hemlock trees provide shade to keep the water cool during the summer, allowing cold-water fish like brook trout to thrive (https://bit.ly/3I3sbcQ ...
The hemlock woolly adelgid (Adelges tsugae), an adelgid introduced to the United States from Asia in 1924, threatens Carolina hemlock, which is as susceptible as the related eastern hemlock. [8] The trees may also be attacked by elongate hemlock scale (Fiorinia externa). [7]: 15–16 [10]
Fiorinia externa, the elongate hemlock scale, was accidentally introduced into North America from Japan and is now established in most parts of the north-eastern U.S. [2] It has become a serious pest of hemlock (Tsuga) and some related conifers from the family Pinaceae. Dense colonies of the scale insect result in yellowing, shedding of leaves ...
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The distribution of T. mertensiana stretches from Kenai Peninsula, Alaska, to northern Tulare County, California. [4] [5] [6] Its range fairly closely matches that of T. heterophylla (western hemlock), found less than 100 kilometers (62 miles) from the Pacific Ocean, apart from an inland population in the Rocky Mountains in southeast British Columbia, northern Idaho, and western Montana.
Join conservationists for a hands-on workshop at Cumming Nature Center to identify and survey the tree-killing insect, hemlock woolly adelgid.
Tsuga (/ ˈ s uː ɡ ə /, [3] from Japanese 栂 (ツガ), the name of Tsuga sieboldii) is a genus of conifers in the subfamily Abietoideae of Pinaceae, the pine family.The English-language common name "hemlock" arose from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant hemlock. [4]
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