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A dog with skin irritation and hair loss on its leg caused by demodectic mange. Infectious skin diseases of dogs include contagious and non-contagious infections or infestations. Contagious infections include parasitic, bacterial, fungal and viral skin diseases. One of the most common contagious parasitic skin diseases is Sarcoptic mange (scabies).
Cerioporus squamosus synonym Polyporus squamosus is a basidiomycete bracket fungus, with common names including dryad's saddle and pheasant's back mushroom. [2] It has a widespread distribution, being found in North America, Australia, and Eurasia, where it causes a white rot in the heartwood of living and dead hardwood trees.
Armillaria tabescens causes separation of the bark from the wood by the production of mycelial fans in the trunk, a common sign of Armillaria root rot. [2] It also causes gummosis , patches of gummy material on the surface of plants, which occurs in response to an external stimulus which causes the plant to ooze sap. [ 4 ]
Microsporum canis is a pathogenic, asexual fungus in the phylum Ascomycota that infects the upper, dead layers of skin on domesticated cats, and occasionally dogs and humans. [1] [2] The species has a worldwide distribution. [3]
Armillaria root rot is a fungal root rot caused by several different members of the genus Armillaria. The symptoms are variable depending on the host infected, ranging from stunted leaves to chlorotic needles and dieback of twigs and branches. However, all infected hosts display symptoms characteristic of being infected by a white rotting ...
This root disease typically causes the tree to have a thin crown from bottom up and inside out. Trees will eventually die. A landscape scale symptom is the rings of dead trees in various stages of decay and death, with the oldest at the center and progressively younger moving outward. The white rot fungus found in the roots is the sign of ...
[48] [49] The natural durability varies between tree species, geographic regions, environmental conditions, growth stage, and increases with the age. Thereby, some trees are more resistant to fungal diseases and insects and their timber lasts longer than other trees. Notably, the timber of these trees remain durable for a long-time period, even ...
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 .