A healthy tree is better prepared to deal with Japanese maple pests. Its has the appearance of looking sick and waning. Inonotus obliquus, commonly known as chaga (a Latinisation of the Russian word чага), is a fungus in the family Hymenochaetaceae.It is parasitic on birch and other trees. The main signs are rot on the truck of the tree, which can mess up its structural integrity. Limbs and branches with cankers should be pruned back to the closest main joint. Maple trees are susceptible to numerous fungal diseases that cause cankers--areas of dead bark--on tree trunks and branches. My 15 year old Japanese maple has a some sort of disease or fungus at its base. Baking soda and water 3. The sterile conk is irregularly formed and has the appearance of burnt charcoal. Sap oozes from the canker in the bark. There are several types of fungus that can be found on different trees. The disease begins in bark layers, then extends into inner wood and often leaves oozing, wet areas on the bark. Common to maples, the fungal pathogens enter the trees through wounds. Thin trees with rot are likely to fall apart. A mild case of canker will resolve itself, but heavy infection will kill the tree. Tree Bark “Fungus” Identification and Treatment Algae, moss and lichens are the three main types of green growth that can appear on tree branches and trunks. Peeling bark caused by this disease is accompanied by yellowing and wilting leaves and dying branches. Here are four methods you can use: 1. Hardwood trees that have peeling bark may be suffering from a fungal disease called Hypoxylon canker. Gentle winds transform silver maple trees (Acer saccharinum) into shimmery flashes of light. All look similar at first glance but have a few subtle distinctions. Canker can attack through bark damage. Now that you know why you need to get rid of tree fungus, let’s talk about how you can get rid of it. The bark has opened and there is a liquid running out of the area exposed. Cutting off infected limbs Unsightly calluses and sunken areas on maple tree trunks and bark are caused by canker diseases. In addition, the wood under the peeling bark is covered with a mat of fungus. Other symptoms of fungal infection include sunken areas on parts of the tree's bark and discoloration on the bark. Japanese Maple Tree Diseases. Verticillium wilt is another common Japanese maple The most common Japanese maple diseases are caused by fungal infection. Clorox bleach and water 4. The leaves of the tree do not look very healthy this year. Although, cankers are unsightly, most will not kill a tree. Dealing with Tree Fungus. One of the main causes of a maple tree's bark turning black is a fungus called Verticillium. Preventing tree fungus from growing 2. Fungus on the Trunk of a Silver Maple. Is there anything I can do to treat it.