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[48] [49] [50] Individual western red cedar trees vary in susceptibility to the disease and although all age classes are affected, seedlings and young trees suffer the most. [ 7 ] [ 9 ] [ 51 ] [ 52 ] [ 53 ] A physiological change in western red cedar appears to account for an increase in blight resistance for certain individual trees when they ...
Phytophthora lateralis is a soil-borne plant pathogen that causes cedar root disease in Port Orford cedars (Chamaecyparis lawsoniana).This pathogen was first noted to cause disease in around 1920 on nursery stock near Seattle.
Thuja occidentalis, also known as northern white-cedar, [1] eastern white-cedar, [2] or arborvitae, [2] [3] is an evergreen coniferous tree, in the cypress family Cupressaceae, which is native to eastern Canada and much of the north-central and northeastern United States. [3] [4] It is widely cultivated as an ornamental plant.
T. plicata is an important tree to the First Nations people of the Pacific Northwest and is sometimes called "Canoe Tree" because of its use as a material for Native American canoes. [citation needed] Oil of Thuja contains the terpene thujone which has been studied for its GABA receptor antagonizing effects, with potentially lethal properties. [26]
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Gymnosporangium juniperi-virginianae is a plant pathogen that causes cedar-apple rust. [1] In virtually any location where apples or crabapples and eastern red cedar (Juniperus virginiana) coexist, cedar apple rust can be a destructive or disfiguring disease on both the apples and cedars.
Chamaecyparis lawsoniana, known as Port Orford cedar [2] or Lawson's cypress, [3] is a species of conifer in the genus Chamaecyparis, family Cupressaceae. It is native to Oregon and northwestern California , and grows from sea level up to 1,500 metres (4,900 ft) in the valleys of the Klamath Mountains , often along streams.
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