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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 ...
The symptoms give the disease its name. The first signs of infection that can be seen are yellow and brown spots that develop on the living needles, [ 7 ] [ 8 ] which soon turn red. This infection starts on the base of the crown on older needles, which then turn a brownish red at the tip, while the rest of the needle remains green. [ 9 ]
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.
It is a plant pathogen that causes tree disease commonly known as "red ring rot" or "white speck". This disease, extremely common in the conifers of North America, decays tree trunks, rendering them useless for lumber. [2] It is a rot of the heartwood. Signs of the fungus include shelf-shaped conks protruding from the trunks of trees.
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.
Japanese oak wilt (also called mortality of oak trees in Japan) is a fungal disease caused by Raffaelea quercivora fungus affecting by oak trees. In 1998, Japanese plant pathologists group was isolation, inoculation and reisolation the dead tree. [1] It is the first disease known that Raffaela fungus cause plant disease.
Symptoms include “sensitivity to light, dizziness, pain behind the eyes, nausea, vomiting, and rash,” the CDC says, while more serious disease includes meningitis, encephalitis, and bleeding.
The term "Japanese maple" is also sometimes used to describe other species, usually within the series Palmata, that are similar to A. palmatum and native to China, Korea or Japan, including: [citation needed] Acer duplicatoserratum (syn. A. palmatum var. pubescens Li) Acer japonicum—downy Japanese maple; Acer pseudosieboldianum—Korean maple