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Laminated root rot also known as yellow ring rot is caused by the fungal pathogen Phellinus weirii.Laminated root rot is one of the most damaging root disease amongst conifers in northwestern America and true firs, Douglas fir, Mountain hemlock, and Western hemlock are highly susceptible to infection with P. weirii.
Huon pine is so rot resistant that fallen trees from many years ago are still commercially valuable. Merbau is still a popular decking timber and has a long life in above ground applications, but it is logged in an unsustainable manner and is too hard and brittle for general use. Ironbark is a good choice where available.
Douglas-fir is one of the world's best timber-producing species and yields more timber than any other species in North America, making the forestlands of western Oregon, Washington, and British Columbia the most productive on the continent. In 2011, Douglas-fir represented 34.2% of US lumber exports, to a total of 1.053 billion board-feet.
It is a plant pathogen that causes laminated root rot in certain conifers, typically Douglas-fir and western redcedar. [2] It is widespread in the Douglas-fir growing regions of British Columbia, Washington and Oregon. [3]
Phytophthora root rot Phytophthora spp. Pitted sap rot Trichaptum abietinum: Red-brown butt rot Phaeolus schweinitzii: Red ring rot Phellinus pini: Rhabdocline needle cast Rhabdocline pseudotsugae. Rhabdocline weirii. Rhizina root disease Rhizina undulata: Rose fomes rot Fomitopsis cajanderi: Rust-red stringy white rot Echinodontium tinctorium ...
The term brown rot replaced the general use of the term dry rot, as wood must be damp to decay, although it may become dry later. Dry rot is a generic name for certain species of brown-rot fungi. Brown-rot fungi of particular economic importance include Serpula lacrymans (true dry rot), Fibroporia vaillantii (mine fungus), and Coniophora ...
Red ring rot is common in North America. The pathogen Porodaedalea pini is widely spread in the temperate zone in the Northern Hemisphere. [4] It infects a wide range of coniferous trees, including jack pine, lodgepole pine, Sitka and white spruce, Douglas-fir, balsam and true fir, western hemlock, and tamarack.
Abies amabilis (Pacific silver fir) Can reach 230 ft (70 m) in height. The timber is lightweight, with low resin content. The species can easily be distinguished from non-fir conifers by the grey, blistery trunk and rigid branches. Uses: timber; landscaping, pulpwood, veneers, winter holiday decorations [11] [12] —