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Fomes fomentarius is a stem decay plant pathogen Dry rot and water damage A wood-decay or xylophagous fungus is any species of fungus that digests moist wood , causing it to rot . Some species of wood-decay fungi attack dead wood, such as brown rot, and some, such as Armillaria (honey fungus), are parasitic and colonize living trees.
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.
Known as Spanish cedar in English commerce, the aromatic wood is in high demand in the American tropics because it is naturally termite- and rot-resistant. An attractive, moderately lightweight wood (specific gravity 0.4), its primary use is in household articles used to store clothing.
Too much water can lead to Armillaria root disease, a deadly form of root rot. Preserving the trees is critical, because without the cedars, there is no Christmas Tree Lane.
Dry rot is spread by spores which are present in most buildings. The minimum moisture content of timber for spore germination is 28–30% (lower than other rots), and the relative humidity must be in excess of 95%. Spores are resistant to desiccation and may still be viable for germination when they are several years old. [2]
The perpetual saturation of wood with water also inhibits dry rot, as does perpetual dryness. [9] Dry rot would appear to be a paradoxical term seemingly indicating decay of a substance by a fungus without the presence of water. However, its historical usage dates back to the distinction between decay of cured wood in construction, i.e. dry ...
Heart rot is a major factor in the economics of logging and the natural growth dynamic of many older forests. Heart rot is prevalent throughout the world affecting all hardwood trees and can be very difficult to prevent. A good indication of heart rot is the presence of mushrooms or fungus conks on the tree.
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.