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Maple bark disease, or maple bark stripper’s disease, is an uncommon condition caused by exposure to the spores of C. corticale. [5] The spores are hyper-allergenic and cause a hypersensitivity pneumonitis. [6] [7] The disease has been found among workers in the paper industry employed to debark, cut and chip maple logs. The symptoms include ...
Eutypella canker is a plant disease caused by the fungal pathogen Eutypella parasitica. This disease is capable of infecting many species of maple trees and produces a large, distinguishable canker on the main trunk of the tree. Infection and spread of the disease is accomplished with the release of ascospores from perithecia.
Acer pycnanthum, the Japanese red maple, (ハナノキ, hananoki, or 花の木, hanakaede, meaning "flower maple") is a species of maple native to Japan, and introduced to Korea. [3] A tree usually about 20 m, reaching 30 m, it prefers to grow in relict mountain wetlands.
Acer palmatum, commonly known as Japanese maple, [3] palmate maple, [4] or smooth Japanese maple [5] (Korean: danpungnamu, 단풍나무, Japanese: irohamomiji, イロハモミジ, or momiji, (栴)), is a species of woody plant native to Korea, Japan, China, eastern Mongolia, and southeast Russia. [6]
Early stages of the disease show a light brown and tan color that looks dry and dusty. Later on, as the pathogen goes through the sexual stage, the bark will turn to a dark grey color. The bark becomes brittle and flakes off, [2] and black and grey cankers will appear. [1] These changes are symptoms, indications of a disease.
A healthy tree naturally combats heart rot through a process called compartmentalization. The tree grows around the decayed wood tissue and prevents the fungus from spreading to a larger area of the trunk. Providing a tree with the necessary nutrients, water, and growing conditions will promote healthy growth and minimize rot.
Maple decline is a term describing loss of vigor and dieback in forests or urban plantings of maple trees. It is not a disease or a syndrome, nor is it contagious or endemic. Instead, it is a generalized set of symptoms that may be applied to any species of tree suffering a wide range of different stressors.
The fungal pathogen Cristulariella depraedans is found in Europe and North America and mostly affects trees in the genus Acer.Trees affected in Germany and Britain are primarily the sycamore (A. pseudoplatanus) and the Norway maple (A. platanoides), while in North America the most affected are A. platanoides, the red maple (), the sugar maple (A. saccharum), the silver maple (A. saccharinum ...