... Great spruce bark beetle, 8-toothed spruce bark beetle, pine-tree lappet moth, pinewood nematode, Phytophthora ramorum: Sweet chestnut (Castanea sativa) As the fungus grows and multiplies, it stops the tree from compartmentalizing the wound and can eventually spread throughout the tree. Here are some of the most common tree diseases, along with their respective treatments. Below you will find a list of diseases that affect maple trunk and bark. Another sign that your tree has a disease is peeling bark. Specific tree pests and diseases. Improper pruning can increase your risk of cankers. Canker Diseases: Canker Diseases are caused by fungi that commonly enter the tree through wounds in the bark or branch stubs. Peeling Bark. This does not guarantee that the infection is completely removed. Canker Diseases. 1. Identification tip: Cracked, dry bark on the lower trunk may be due to Dothiorella gummosis, Exocortis, Hendersonula tree and branch wilt, Psorosis, or infection by Phytophthora spp. A variety of canker diseases affect trees, including Cytospora canker on pine, poplars, spruce and willows. Thousands Canker Disease: Originally confined to the western parts of the United States, Thousands Canker Diseases, made it to Fairfax County in 2012. The drought stress weakens the tree making it more susceptible to attack by root weevils and bark beetles which carry Leptographium fungi that infect and destroy the root system of the tree. ... you need to use an insecticide that can be injected directly into the trunk of the tree or sprayed on the bark as a general application. Bark and Trunk Diseases Beech Bark Disease affects beech trees and is caused by the combination of a beech scale insect’s feeding habits and an opportunistic fungal pathogen. The bark on your tree is important, as it protects the inner core of the trunk and keeps the tree healthy. Maple Tree Bark Diseases and Damage Canker Fungus Maple Tree Bark Disease. An early sign of beech bark disease is a visible infection on the tree’s bark that looks like a … Canker diseases result when a fungal or bacterial pathogen enters bark or sapwood through a wound. If the bark on your trees starts to peel, the trees may not maintain necessary nutrients and could die. Cankers – Cankers occur when a tree’s bark is wounded, and an opportunistic fungus finds its way into the wound. 3. This is because bark diseases of maple trees are very visible to a tree’s owner and are often bring about dramatic changes to the tree. Anthracnose disease. Eventually the tree’s vascular system …

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