Remove leaf debris. I had thought that the spots had stopped spreading (I don't seem to be getting any more leaves that turn completely brown), but it's recently put out some new leaves, but those too are developing spots. So i am sharing a fantastic website for a company which providing Pest Control services in Toronto.Maple Pest Control is serving Greater Toronto Area for over 20 years in pest control service to home and commercial places with latest techniques. In diseased branches, the wood under the maple's bark has olive or gray-green streaks. About a 3/4 of the tree has sparsh leaves and then 1/4 has no leaves at all (about 2 large branches on the same side). My tree each year establishes pods a few weeks prior to leaves emerging. There are an estimated 20,000 different varieties. 1  With back-to-back "Urban Tree of the Year" awards in 2003 and 2004, you know they are pollution-tolerant (an important fact if you will be growing them along a street in a busy neighborhood). Whichever soil you select, dig a hole three to five times as wide as the root ball but the same depth. We've had a wet spring, so I've watered only after a couple days of dry weather using Miracle Grow and other types of fertilizer. Please check this link from the US National Forest Service: Water it frequently as it will be more susceptible to disease if the situation isn't reversed soon. So now the cars and deck are covered with sticky sap. Charlotte Gerber (author) from upstate New York on August 29, 2010: Hi Indoor Greenhouse Guy- Thanks for the kudos! I am not sure if it is related but a few years ago another large apparently healthy bigleaf maple (a local native species. Red Sunset grows moderately fast, 45'-50' high with a 35'-40' spread. Once the top of the tree has been cut off, especially a very young tree, it may not reach its true height. Answer: Leaves on most maple trees appear green because they absorb a lot of chlorophyll. Additionally, the pot is causing restriction of the roots, which is contributing to the problem. Question: Can I use wood putty to fill the trunk cavity of a maple tree? If so, it won't kill your tree, it is just unattractive. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. The aptly-named "Autumn Blaze" maple (Acer x fremanii) is a hybrid between the fast-growing silver maple (Acer saccharinum) and the showy red maple (Acer rubrum). The colour of the Autumn Blaze Maple tree in October. are there any other stress factors, fungi, dieback, insects at the spot? This virus causes discolored leaves. The leaves often show the first signs because they're one of the last tree parts to get water, thus they show under-watering signs first. In either event, I suggest you contact your county Cooperative Extension office and request that they investigate it. The Autumn Blaze maple is a cultivar, not a natural variety of maple tree. Lichen, pronounced "liken," isn't a plant. maple bladder gall (caused by mites, looks like pimples, likes silver and red maples especially, usually appear in May), maple spindle gall (caused by eriophyid mites like. The Bayer treatment is absorbed through the roots of the trees, then as the bugs suck on the tree sap they will die. should I spray the tree for the insect? Thanks for your response about the split trunk being the likley cause of stress to our Japanese maple. The good news is that the trees will recover, and with any luck from Mother Nature, will leaf out in all their glory next year. If the spots make an appearance next year, you could spray the leaves with a fungicide; contact your county Cooperative Extension office (in the US) to find out what fungicides are allowed in your area. The insects look a bit like a musquito. We have a young Sugar Maple (4" diameter) that has looked healthy for the 10 years that it has been planted in our back yard. is arrested and recovery ensues, even in trees with more than 40 percent crown dieback." The autumn blaze maple’s problems start when the tree is planted in soil that doesn’t suit it and proper care is not taken, irrespective of the fact that this is quite a hardy tree. Like verticillium wilt, a fungus in the soil causes root rot and a diseased tree will not recover. I cut the top cleanly at a downward angle and began watering daily. Now the waiting game begins- most maples can leaf more than once when they are stressed, so your tree may show improvement by July. I do still have newer leaves emerging on the problematic tree, but the tree sometimes looks wilted. My big question now is whether or not I should spray it. When inspecting the tree I noticed several of the ends of the branches had a small insect stuck to them. Autumn Blaze Maple will grow to be about 50 feet tall at maturity, with a spread of 40 feet. I am literally at a point where I am considering having them removed as they are a year round headache as far as maintenance. I can definitely see how as the tree is getting older the weight of the branches could be pulling the stems even further apart. I have a maple tree in my back yard. This year it has been growing just fine, many leaves and new branches, nice deep green color. The leaves at the end of each branch (top) are turning brown and droopy. Borers. I would take a "wait and see" approach if the rest of the tree appears to be in good health, and it was healthy overall last year. It filled the inside of the trunks with what looked like peat but was infested with what looked like very tiny white ants. In my case, the temps were in the high 80's to 90's for over a week without rain. It had a brown soft center 3/4 inch in diameter surrounded by normal wood. Tar spot will not kill your trees, but it's unsightly and can cause them to drop their leaves before the fall season. Any advice that you can offer would be helpful. Hi Bob, Sap is common; it doesn't signal the end of the tree's life though. My wife and I just brought home a gorgeous new Fireglow about 2 weeks ago. It doesn't seem to be any particular size of leaf or location. It looks like there are eggs on the underside. The Freeman Maple, also known as Autumn Blaze, is a cross between the red and silver maple species. Hi Scott M., I think you are describing Maple Leaf Gall, which is a fungus. It has excellent orange-red fall color that persists later than many others, and is extremely fast-growing to 40 to 50 feet tall and 30 to 40 feet wide. The trunk of the tree becomes heated, causing the living tissue to become active. Can I trim the roots and repot it? Doesn't sound unreasonable, but not really sure what the root cause is, so hesitant how best to act. Leaf scorch can be remedied with deep watering during hot or windy conditions. My husband has his preferences narrowed down to October Glory or Autumn Blaze. Sapstreak is a ground-living fungus that generally enters the tree's system via an injury near the roots or bottom portion of the tree. Occasionally the leaf margins are yellow or chlorotic. Fall color is a consistent orange-red. Question: A big piece of bark fell off my large silver maple tree. Trees usually recover from this condition when they're heavily watered (10-15 mins) every 3-4 days when there is no rain. Thanks again for any help or suggestions. Charlotte Gerber (author) from upstate New York on October 02, 2010: Hi Samantha, It sounds like you might be describing a leaf gall. The wood area under the bark apears dry and has pin holes showing. Now we have a second double trunk that the very same thing is happening to although as I scraped out this peat type material the bugs inside were also tiny but brown and look like ants. Charlotte Gerber (author) from upstate New York on January 06, 2011: Hi Jerry, So sorry for the delay in responding to you. We planted them in an area that stays pretty soaked most of the time, and I'm wondering if that's why the leaves are starting to turn red. Young plants susceptible to leafhoppers and scale. Thanks. Richardson holds a Bachelor of Arts in English and is enrolled in her local Master Gardener program. If there is too much shade on your tree, the leaves can revert to a green color. I think a call to your local Cooperative Extension office may offer the answer, as they would be aware of any local conditions/problems in your area. Hi, I've been planting sugar maples (small 18-24 inch saplings) on my property in Michigan for 5 years. You could call the city to find out the reason (they may be aware of it) or call your county's Cooperative Extension office for answers. You may see ants around these areas, but they won't harm your tree - they're just collecting the sap. It adapts to a wide range of climates and soils, but requires acid soil and is salt-sensitive. She has written successful grants for local schools as well as articles for various websites, specializing in garden-related topics. Be sure to give it plenty of room to thrive. Hi S. Baker, The spots sound like a fungal problem, but it also sounds like possibly something more serious, like verticillium wilt. The purple leaves on a maple tree and other plants are that color because they have a higher amount of anthocyanin than chlorophyll. Paired with a high tolerance for urban pollution, this tree is a net positive for air quality. The the trunk is >1 ft in diamter and has a split trunk (i.e two main stems from the base). Nothing quite matches. Hi Patty and Sally, I think the two of you have the same problem- mealy bugs or scale insects. Any thoughts? The underlying cause of your problem may be related to the amount of sunlight your tree is receiving. Treating the trees is usually not affective because the spores can travel from a neighbor's tree onto yours. I wouldn't cut the tree down with the bees in it though- that's just asking for trouble! In response to the photos you posted, you could remove the wooden boards from around the tree for aesthetic reasons, and it would prevent litter from collecting there. Thank you! Like other maples, however, “Autumn Blaze” is somewhat susceptible to bark splitting from cold weather as well as from sun exposure. Many thanks in advance - Annie. This Spring only about 25% of the tree is leafing out. There are no treatments. Thanks in advance, Jeff in central valley CA. Their presence may be an indicator of borer activity. The tree is in an area of wood mulch. From what I have read watering should not be required for a well established tree in our area (we also had a very wet spring)and I am worried the tree has reached the end of it's life span. Verticillium wilt is not the only suspect if an autumn blaze maple shows a thin crown. Autumn Blaze has a rapid growth rate, is tolerant of droughty soils, hardy and it is able to grow on alkaline soils … Reading your other posts you state trees can leaf out more than once in a season if they are stressed, should we be giving up at this point? As long as the tree seems well-watered, it should be fine. Be sure to wait for a good weather day to apply the fungicide, with little or no wind. As for types of trees that do well in high winds- pines usually fit the bill for the conditions you speak of, as do oaks. I'm guessing the height of the tree at about 50' and do not know how old it is because I've only lived here 3 years. Charlotte Gerber (author) from upstate New York on June 10, 2010: Hi June, The gall condition won't kill the tree, but it is unsightly. The damage done by this disease is mainly cosmetic. What else makes the Autumn Blaze® a must-have? It forms a dense oval habit with ascending branches. Acer rubrum, the red maple, also known as swamp, water or soft maple, is one of the most common and widespread deciduous trees of eastern and central North America.The U.S. Forest service recognizes it as the most abundant native tree in eastern North America. Hi I have a maple tree in my back yard that has sap leaking on the west side of the tree. I have two old silver maples in my back yard. approx. It can be grown as a specimen tree or multi-stemmed plant. It apparently needs to be a maple Shade tree… Once they fall to the ground, they overwinter there to reemerge in the spring months. Around late May, after a very wet spring, he noticed that it was developing spots. Alternatively, you may also contact the Cooperative Extension office in your area (the closest one is probably on the OSU campus) to see if someone could come look at your tree to make an on-site diagnosis of the problem. Hands On Gardening - Maple Tree Diseases - Duration: 2:27. Follow the directions closely using these types of products so you don't burn the tree roots. Sienna Glen® Maple is an excellent alternative to the commonly planted Autumn Blaze Maple with stronger wood and denser branching. But again the whole neighborhood has the same soil. Make sure your tree gets plenty of water during drought periods this year and perhaps use a liquid tree fertilizer or tree fertilizer spikes to help it quickly get over any stress. This borer tunnels into the center of the tree trunk or a large limb. A couple years ago we planted 2 October Glory Maples here in TN. Your tree(s) should recover if it is kept well watered during drought conditions. Next, I would make sure that the tree gets enough water if you don't have a lot of rainfall- your tree will need this kind of TLC all summer. However, like silver maple , Autumn Blaze tolerates poor soil as well. Question: The bark on my maple tree is peeling. The fungi that cause verticillium wilt affect the tree's vascular system and causes symptoms of wilting and yellowing leaves that are concentrated in one particular area. Charlotte Gerber (author) from upstate New York on August 08, 2010: Hi Peter, You could brace the tree- what you would need is a brace for each side of the tree, so one would be gently pulling one side of the split to bring it together, and the other would be pulling the other side of the split. The dying leaves (almost all at this point) are generally green in colour (even though it is a red maple) but the dead portion is purple and curled under. Check out my slideshow at the beginning of my article- slide #7 is a photo of this type of gall. I live in Columbus Ohio and I have a beautiful sugar maple in my front yard. The trees have always been healthy, dark nicely shaped leaves and beautiful and they appeared to have the same amount of leaves as they always do. Please help. It occurs during the winter, when daytime temperatures become hottest in the afternoon and the sun is in the southwest sky. The tree was losing leaves in July, now they are 60% or more gone. Hi Jeff, It sounds like sun scorch. So, if you wanted a large, shade tree, you may want to replace this one, or just move it to another area of your property where looks/size aren't as important. You can get this product at places like WalMart, Lowe's and other similar stores or garden nurseries. It doesn't seem to have any long-lasting effects on the places where it grows. I'll be more than happy to post pictures if it will assist in identifying the problem. The maple tree tar spot is fairly easy to identify. Alternatively, you could contact a beekeeper who may be interested in the bees, then cut down the tree (though they would be "wild" bees). ... the foliage turns into an autumn blaze of orange-red to scarlet-red fall color. Personally, I've had luck with Bayer Advanced Tree and Shrub (available at WalMart and other similar stores in the garden section) for my maples. Would the Bayer product work on this problem? The big drawback of the Autumn Blaze maple is its structural weakness. In the late fall you may want to prune any dead branches, if that is what has happened to that side of the tree. Flowers and fruit for this hybrid are very sparse. Call your local Cooperative Extension office (your county office will have their number), and ask if they can help you identify what bug(s) are attacking your tree, and if the tree needs to come down for safety reasons. The tree likely needs to be removed and destroyed. My maple leaves are much smaller, for example, because the initial set of leaves were hit by frost right before they opened. Hi Lizanne, I'm not sure what you're seeing on the leaves of the trees. Fortunately, it's not harmful because it feeds off of the air rather than the trees. It gets plenty of sun. The autumn blaze maple (Acer x freemanii 'Jeffersred') is a hybrid of the silver maple (Acer saccharinum) and red maple (Acer rubrum). Is this occurring from a lack of water? Caring for Autumn Blaze Pears. I have seen cement used but it would take a very large amount. No sign of anything other than a few earwigs around the tree. It comes in vast swaths of colors and formations. It is particularly known for its ability to grow quickly, grow well in diverse climatic and soil conditions and provide a long-lasting, vibrant fall leaf display. This is the escape tunnel. Find helpful customer reviews and review ratings for Autumn Blaze Red Maple Tree - Acer saccharinum - Heavy Established Roots - Two Gallon Potted - 1 Plant by Growers Solution at No more waiting for you maple tree to grow, because the silver maple contributes to the vigor without interfering with the natural strength of the red maple. Below are tips on caring for Autumn Blaze trees. You happened to cut the tree when the sap had started flowing in spring (maple syrup making time!). Anthracnose is commonly mistaken for tar spot. Question: Why aren't my Purple Maples purple? Their size ranges from one-eighth of an inch to an inch or more in diameter on the Norway Maple. Maple tree leaves rusty - Knowledgebase Question. The delicate foliage holds its color for several weeks before shedding to the ground. It kills sucking insects, which are causing the "honeydew" (sticky, syrup-like substance) on your trees. About 3 or 4 weeks ago, the leaves on two braches coming off the trunk, have wilted and dried up. One of the worst diseases that your tree can get is verticillium wilt. Recently i knew about Maple pest Control Services which seems to be too much beneficial for maple tree pests. You can call your local Cooperative Extension office to see what fungicides are legal in your state. If you are wondering how to care for an Autumn Blaze pear, first think about planting it appropriately. Find helpful customer reviews and review ratings for Autumn Blaze Red Maple Tree - Acer saccharinum - Heavy Established Roots - Two Gallon Potted - 1 Plant by Growers Solution at You'll know it's this mold if it rubs off easily on your fingers when you touch it. If you have verticillium wilt, it lives in the soil and will continue to attack any new maples that you plant. 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