They combine the best features of their parents, red maples and silver maples. It has starting wilting on about 1/3 of the branches and the leaves die off in a few days. If it’s left untreated it can lead to the death of your tree. Brown spots on "Autumn Blaze" maple leaves usually indicate a disease, such as tar spot, leaf spot or anthracnose. We planted it in our front yard and seems to have been doing well, until last week. ... thoughts right now are that your tree had Verticillium wilt. About 3 or 4 weeks ago, the leaves on two braches coming off the trunk, have wilted and dried up. I have developed a problem with my Autumn Blaze Maple and have included a picture. Autumn Blaze Maple wilting. What to Do About Newly Planted Tree Leaves Wilting, Turning Yellow or Browning Trees often suffer from transplant shock because their roots don’t have enough room to establish themselves. Was doing fine all spring, but is now loosing leaves at the end of it’s branches on the windward side and developing a light green fungal looking growth on its trunk. Watch for signs of drought stress which include wilting of leaves and new growth, scorching of the leaf edges and dry, curled leaves. This started in late July or early Aug. It is caused by a soil-inhabiting fungus called Verticillium.The disease fungus can be spread by many methods including from plant-to-plant, through the soil, groundwater and often by infected pruning equipment that has not been properly sanitized. Water maples during drought, avoid root damage, fertilize if necessary and ensure proper soil drainage. This is a disease that’s a little more severe. With diversity in function, height, bark texture and leaf color, there’s a maple tree (Acer spp.) Verticillium Wilt, often called Maple wilt, is a very common disease that attacks a large number of trees. The leaves along the bottom shriveled up, turned brown and died off. Tree Diseases in Maples. Diseased Leaves. You’ll also find tips on Autumn Blaze maple tree care. Try These 4 Tips if Your New Tree’s Leaves Are Turning Brown or Wilting Posted on August 12, 2017 by Econo Tree Service If you have recently planted a tree, you know that it will likely go through some sort of “ugly” period – a time when the tree doesn’t look its best because it has just gone through something truly traumatic. Asked June 16, 2019, 5:21 PM EDT. An autumn blaze maple takes years to die from root rot, slowly declining over each season. Fast growing, with deeply lobed leaves and fabulous fall color, Autumn Blaze maple trees (Acer x freemanii) are exceptional ornamentals. I live in southern Minnesota and planted the tree in the spring of 2010. This is continuing all the way up to the top. Up until 2 weeks ago it had nice 3" length leaves. To help roots access iron, work 4 inches of compost into the top 12 inches of soil well beyond the outermost branches. Verticillium wilt is caused by a fungus and is a challenging one to deal with as it’s hard to diagnose and cannot be cured. I have an 4" diameter autumn blaze maple which was planted 3 years and this spring leafed out very healthy. Maple Wilt. Verticillium Wilt. The growth has flowery-snowflake … If you want more Autumn Blaze tree information, read on. Had a large (~5″ trunk) Autumn Blaze Maple planted last fall. This Mother's Day my husband bought me an Autumn Blaze Maple. It has done very well up until this point. Shocked trees also need a little TLC to get them back on track. As it enters the tree, it will cause the leaves to discolor and shrivel up. The roots of Autumn Blaze, like its parent silver maple, lack the ability to adequately stabilize iron in the soil, leading to chlorosis or yellowing of the leaves caused by iron deficiency. Like verticillium wilt, a fungus in the soil causes root rot and a diseased tree will not recover. to suit any garden. These problems are usually cosmetic and rarely require treatment.