Jason Douglas ArboristSite Guru. Bradford pear, Pyrus calleryana Otherwise, that artificial mix will dry out much faster than the surrounding soil. A. Girdling roots are those that wind up growing around the trunk of a tree rather than out into the surrounding soil. Green ash, Fraxinus pennsylvanica To avoid problems with your new maple, evaluate the planting site for very compacted soil. Usually tree trunks flare out where they enter the ground. It is almost impossible to predict if a developing girdling root will cause problems for a tree. Symptoms of Girdling Tree Roots Symptoms include reduced growth, smaller-than-normal leaves, fewer-than-normal leaves, lighter green leaf color, branch dieback and the eventual death of affected trees. Post to. We intend to replace it with another maple. Jason Douglas. Mulch also becomes water repellent once it dries out completely as has happened during our recent dry spell, causing more drought stress. Symptoms of stem girdling roots include: (1) Scorch, early fall color, early leaf drop, damage on one or two branches. In order … Cut into the trunk by 1 to 1 1/2 inches. Never attempt to remove very large girdling roots. Holly, Ilex spp. There is a balance between the crown (top growth) and root system of a healthy tree. The galls are small but can be so numerous that individual leaves curl up. Pruning. Reduce environmental stresses on established trees and add nutrients if it appears there is a deficiency. Many of these symptoms can also be characteristic of other causes, such as drought or nutrient imbalances. A deep layer of mulch also provides a favorable environment for voles and other rodents to take up residence. Cultural practices that may cause girdling include poor growing practices or poor planting techniques. On container plants, score the rootball by cutting an inch deep into it from top to bottom on at least four sides. Maples also suffer from being planted too deep, mulched incorrectly with mulch piled against the trunk, compacted soil, too small a soil volume for their roots, girdling roots, cankers, and fungi, and insects like scale and caterpillars. Aug 20, 2015 - Did you know that the average tree has as much mass below ground as it has above ground? These symptoms are frequently seen just on the side of the tree where the offending root is growing. Crabapple, Malus spp. Fast growing Trees tend to have shallow, aggressive roots which cause issues as they grow – specifically, Silver Maple roots have been known to lift sidewalks and break macadam driveways. Stem girdling roots choke off the flow of water and nutrients between the roots and branches, and they prevent food produced in the leaves from reaching the roots. A major root on this small bonsai tree illustrates how plastic pots will cause tree roots to grow in a circling pattern, which will eventually lead to problems, especially with large landscape trees. However, if a tree has girdling roots it is more likely to have problems than one without them. Scotch pine, Pinus sylvestris Many authorities recommend against planting silver maple. Red Maple is easily transplanted and usually develops surface roots in soil ranging from well- drained sand to clay. And remember that more is not better when it comes to mulch. Pin oak, Quercus palustris Scorch symptoms are light brown or tan dead areas between leaf veins or around the leaf margins. Girdling roots may girdle other roots, but there is no known harm in this. Amending the backfill with a lot of organic matter is no longer recommended. the silver maple are suscepti-ble to root girdling. Juniper, Juniperus spp. Trees can survive girdling roots if they are caught early on and removed while they are still small. Cut away the wrapping on balled & burlapped plants, check for girdling roots and natural root flare. The silver maple tree root system is large and has very strong roots. They can also compress and weaken the trunk of a tree at or above the root collar flare (the junction between the trunk and the main roots) causing it to lean and lose its stability. Apply mulch no deeper than 3 inches and never against the trunk of the tree. Black gum tupelo, Nyssa sylvatica Sweetgum, Liquidambar styraciflua We love the maple and hate to lose it, so I would like to know if there is anything we can do to prevent this problem the next time we plant a tree. Invasive tree roots can be very destructive. (6) Leaning (7) Susceptibility to environmental extremes and other biotic problems. Norway maple, Acer platanoides Shumard oak, Quercus shumardii 1). that occupy a quarter or more of the trunk's circumference. Avoid using fast–release fertilizers, they may burn tree roots. If you are planting a balled-in-burlap tree, do not dig the hole until you find the root flare so you know how deep to dig it. The only sure way to determine if a stem girdling root is the cause of a problem is to examine the root system and its relationship to the tree trunk. Walk along the trunk of the tree, with the blade of the chain saw inside the trunk, and create a groove all around. On top of all of that, the wood is weak and … Trees with girdled canker will eventually die. Cancel. Plant the new tree at the proper depth, no deeper. On mature trees, if any of the symptoms appear, examine the root collar by probing into the soil near the trunk flare with a stiff wire to find the depth of any stem girdling roots. Root girdled stem on Japanese Emperor Maple. Cut through any circling roots of container grown plants in a few places. The root will prevent the collar flare, sometimes the trunk may get narrower and appear flattened or sunken. It is best to have this done by a certified arborist who has the training to determine if removing the root would create an unstable tree hazard. Girdling roots result when roots coil around the base of a tree trunk and restrict the flow of sap in the tree. You will break some fine roots as you do this. This was the first tree we planted when we moved into our home 20 years ago. Tags. Remove any girdling root on bare-root plants. Normal trees have a gentle trunk flair or buttress at their base (Fig. At the end of this article is a list of trees that may be more prone to stem girdling roots. ‘Skinneri’ Silver Maple is a fast-growing, weak-wooded tree which probably reaches a height of about 60 feet with a large trunk (Fig. Further inspection found that the soil around the tree is very soft and appears to have colonies of carpenter ants around the base. The roots will grow up towards the surface of the soil and tend to encircle the trunk. 1). This video is unavailable. The trunk may look ‘flattened’ on that side, too. Trees should always be planted so that the root flare — where the trunk flares out to meet the roots — is just at ground level. Size Matters, Too. Q. If you do not remove the artificial soil, be sure it is completely covered with a thin layer of native soil. The galls are round and at first green but later turn red, then black, then dry up. Mulch should be placed close to but never touching the trunk and extend out to the drip line (the ends of the branches). Scorch symptoms tell us that one or more of the following factors are affecting the tree: 1. Occasionally the leaf margins are yellow or chlorotic. If stem compression from a stem girldling root is more than one third to one half of the stem circumference, removal of that tree should be considered because the tree’s stability is compromised. A tree suffering from root girdling may have branches with reduced growth or leaves that are smaller on one side of the tree than the other. A plant disease diagnostic laboratory cannot identify this problem. Girdling Position the blade of a chain saw perpendicular to the trunk of the maple tree, 5 feet above the ground. A tree is girdled when something is tightly wrapped around the trunk or stem. White pine, Pinus strobes Fruitless mulberry. Nov 19, 2016 . The most prominent species is P. cactorum. Zelkova, Zelkova sp. If one has caused extensive compression, removal treatment must be careful not to damage the stem. This maturing Red Maple has girdling roots that developed over the years and were hidden by years of mulching. Honeylocust, Gleditsia triacanthos Physiological leaf scorch is the most common. Nov 19, 2016 #3 Basal decay due to frost cracks, possible southwest disease, deep planting depth, or girdling roots. Some trees may be too far gone to be worth the investment, but I have seen trees recover miraculously once their root crowns are uncovered. Declining Manitoba Maple Cross-section Home; About; Estimates; Contact; Gallery; Blog at WordPress.com. The root systems of trees grown in containers or in ball and burlap often respond to their restricted growing space by … Planting. Some arborists also offer root crown excavations to uncover the root systems of trees that have been planted too deeply or have had additional soil moved over their roots systems during construction. Trees having stem girdling roots suffer a slow decline in health and a premature death. Montgomery County Maryland girdling roots japanese maple with girdling roots tree submitted over 4 years ago. It's late August in 2012 and I've observed once again a premature turning of the leaves for certain branches on our Maple tree. Sawtooth oak, Quercus acutissima An arborist diagnosed it as a case of girdling. So they are easily exposed out of the surface after some years and have the potential to break through the sidewalks and other nearby materials. Howard County Maryland tree silver maple loose bark girdling roots submitted about 4 years ago. It grows best on acid soil, which remains moist, but adapts to very dry, alkaline soil. Planted between the driveway and the walk, an ailing maple whose girdling roots had heaved itself and the sidewalk out of level. You should also make two diagonal cuts across the bottom of the rootball in an inch-deep “X” pattern. 1. Leaf Scorch: On maple (Acerspecies) trees a number of problems cause symptoms that are generally classified as leaf scorch. (2) Planting container grown trees that have roots growing in a circular pattern. It is usually found growing in open sunlight along creeks and waterways. The causal factors may be genetic or cultural. Trees with diseased or inadequate root … All plants need water, oxygen, and nutrients. Stem girdling roots choke off the flow of water and nutrients between the roots and branches and food produced in the leaves from reaching the roots. The above planting directions apply to container-grown plants, too. Applying more mulch than that is like planting a tree too deeply, encouraging adventitious roots that can become girdling roots. Therefore it is recommended to keep a distance between Maple trees and the building materials. A stem girdling root circles or partially circles the base of a tree at or just below the soil surface. A … Strategies 1, 2, 4, and 5 are strictly organic approaches. Stem girdling roots are commonly removed by using wood gouges, saws or pruners if they have caused minimal stem compression. Silver maple, Acer saccharinum Cherry, Prunus spp. The threat depends on the size of the root and the amount of the tree’s circumference affected. This susceptibility can be compounded by poor site conditions and poor planting practices. (5) Little or no trunk taper at the collar. They will easily grow up and raise cement sidewalks and porches. × View full size in a new window × View full size in a new window × View full size in a new window. A new drive positioned a more generous distance from the front door enabled room for planter boxes under the windows, and some breathing room for landscape and lawn. The silver maple tree root system is one of the most intrusive of all the maple tree root systems. If you enjoy these photos, you're invited to 'Like' and 'Follow' @WildHeartTreeCare on Facebook and Instagram to see more and stay up to date with the latest content! Certified professional arborists have had some success managing girdling roots on established trees. maples other than the silver maple are susceptible to root girdling. (3) Excessive twig dieback, the appearance of large, dead, leafless branches (stagheading). 5. Hackberry, Celtis occidentalis Surface roots beneath the canopy can make mowing difficult. Acer saccharinum-- Silver Maple Page 4 Gall mites stimulate the formation of growths or galls on the leaves. We have a dying maple tree that has been diagnosed with a “girdling root.” We were told to have the tree removed and plan to do so. If your tree goes straight into the ground like a telephone pole, it is planted too deeply. If there is soil above the flare, very carefully remove it down to the flare. Cultural practices that can adversely affect this natural root pattern include: (1) Planting in a hole that is too small so the roots can not easily spread out. As the girdling root and the trunk of the tree grow in diameter, the girdling root slowly chokes off the flow of water and nutrients to the tree. Siberian elm, Ulmus pumila Red oak, Quercus rubra Landscaping, gardening and the environment. Insect Problems: Cottony maple scale, Pulvinaria innumerabilis. As it grows larger and the trunk expands, pressure against the tree base limits water and nutrients going to the leaves. (5) Piling mulch against the trunk of a tree (creating a mulch volcano). The majority of a large tree’s roots are in the upper 18\"-24\" of soil. They are known as adventitious roots and can become girdling roots in the future unless the tree is re-planted at the proper depth. Dig planting holes 2 to 3 times as wide as the root ball, with sloped sides and no deeper than the root ball. White oak, Quercus alba Gingko. Most roots, therefore, especially the important, tiny, absorbing roots, proliferate near the soil surface. (4) Thin appearance to the crown, overall stunting. I have had my problems with silver maple trees having major parts fall off and in some cases hitting buildings and overhead electric wires. Backfill with the soil you dug out of the hole. Spruce, Picea spp. Littleleaf linden, Tilia cordata Leaves may scorch in areas with restricted soil space during dry spells in the summer but will tolerate drought if roots can grow unrestricted into a large soil volume. Symptoms include reduced growth, smaller-than-normal leaves, fewer-than-normal leaves, lighter green leaf color, branch dieback and the eventual death of affected trees. 3. Without proper and frequent pruning high winds and ice can cause limbs to break. Species at a higher risk for root girdling include pines, lindens, magnolias and all varieties of the maple tree, other than silver maple. When the root can be found early enough and cut off at the point where it begins to curve, the tree can recover. Declining Manitoba Maple . Fast growing, weak water sprouts grow after ‘topping’ a Silver Maple Topping removes a large area of leaf surface very suddenly, thus limiting the amount of food reserves it can produce through photosynthesis. So the possible damage and surface rooting is far spreading. 2. I see this frequently, especially on maple trees that were grown in containers. The appearance of a tree trunk will be affected by a girdling root. Trees that have been planted too deeply or mulched too deeply are also good candidates. Selected Tree Species for the Midwest, Observed by Practitioners to Have Stem Girdling Roots. The main difference is that you can build a cone of soil in the bottom of the hole and splay the slashed rootball over it as additional insurance against girdling roots. The most common theory of the cause of stem girdling roots, is that they develop as a result of trees being planted too deeply. Such roots are frequently left in place when they cannot be removed safely. Of the many ways to kill a tree in the landscape, Girdling Roots ranks high among them, along with poor irrigation, planting too deep (which often … These are most readily available near the soil surface where precipitation infiltrates the soil and oxygen from the atmosphere diffuses into the porous soil. Leaves almost appear as if they were injured with a herbicide because they are so finely dissected. Root systems are vital to the health and longevity of trees. On the other hand, oaks, silver maple, ash, and elm are well known for their ability to form functional root grafts and are rarely adversely affected by girdling roots. Certain species of trees are more susceptible than others, including maple (Acer spp., except silver maple), sweet gum (Liquidambar styraciflua), magnolia, pine and linden (Tilia spp.). This may need to be done by a certified arborist. Our recent investigation confirmed that P. cactorum and one P. citricola-related species are responsible for silver maple bleeding canker in northern Nevada. Watch Queue Queue Scorch occurs during periods of high temperatures accompanied by wind, particularly in areas with limited soil space where roots cannot expand into a large soil volume. Girdling occurs when maple roots twist around larger roots, preventing water and nutrients form absorbing into the tree. On the other hand, oaks, silver maple, ash, and elm are well known for their ability to form functional root grafts and are rarely adversely affected by girdling roots. Girdling Roots -Many trees, including sugar and silver maples are weakened and even killed by the tendency of some of their roots to grow closely pressed to the main trunk and around their large lateral roots, choking off water and nutrients. If you cannot see the root flare, remove soil around the trunk until you can see it. A flat side on the trunk usually indicates a girdling root is below ground. Click a link in the site map below to see other "Pests and Problems" pages, Some girdling roots are visible on the surface; others are not, Mulch volcanos (mulch piled against the trunk of a tree) can lead to girdling roots, while too much mulch can prevent water from reaching the roots, A trunk that emerges straight from the ground can indicate a girdling root hidden beneath the soil, as the missing flare on the left side of this sweet gum (, A tree trunk that emerges straight from the ground without any flare roots, like this ash (, A tree planted properly should have visible flare roots as does this pin oak (, A girdling root finally strangled this white pine (. Stem girdling roots choke off the flow of water and nutrients between the roots and branches and food produced in the leaves from reaching the roots. Girdling roots may be clearly visible above the soil line, but they are often found below ground. Again, it may be necessary to consult with a certified arborist. (2) Abnormally small leaf size. Untangle badly circling roots by hand, and prune off those roots that are circling so deeply back into the rootball that you cannot untangle them. Sugarberry, Celtis laevigata If less than one-fourth of the trunk is damaged, remove the root now. Periodically examine the root flare to make sure it appears normal. This species has become over planted. These symptoms are frequently seen just on the side of the tree where the offending root is growing. Red maple, Acer rubrum Normal trees have a gentle trunk flair or buttress at their base (Fig. maple girdled by its own roots was shown with the scanning electron microscope by Hudler (1981), who reported , however tha t th e vessels wer no appreciably harmed in the root that was doing the girdling. Trees with girdling roots can have a flattened crown, shorter branches or flatter trunk on the girdled side of the tree or show signs of general decline. Make sure there is no soil above the root flare. It has a somewhat weeping, pyramidal growth form and the leaves are finely dissected, not resembling Silver Maple at all. If stem girdling roots are present, gently remove the soil until you can find the root collar flare. An inch or two of mulch is sufficient to maintain soil moisture, moderate soil temperature and help keep weeds down. Gingko biloba You can use your hands, a hand cultivator or the curved part of a wire coat hanger. Austrian pine, Pinus nigra Pathogens Silver maple bleeding canker can be caused by several species of Phytophthora. (4) Leaving wire baskets, burlap and any part of a container in the planting hole. (3) Planting a bare root tree by twisting roots to fit into a small hole. Morus alba When a lateral root is severely girdled, the branches that depend on it for nutrients are weakened and eventually die. Dogwood, Cornus spp. Norway spruce, Picea abies Ongoing care. After pruning some around the very mature silver maple tree in our backyard tonight I discovered colonies of ringless honey fungus on roots in the yard and around the base. Learn more about invasive tree roots in this article. If the mulch is piled up around the trunk, it can hold too much moisture around the bark during wet weather, possibly causing it to rot. Joined Oct 23, 2016 Messages 549 Location Columbus. Using an appropriate organic fertilizers and nutrients would be a viable organic approach to Strategy 3. Poplar/Cottonwood, Populus spp. Bur oak, Quercus macrocarpa Girdling roots do not become obvious until five to 20 years after a tree is planted, and it happens so gradually that people often do not realize there is a problem until it is too late. Hemlock, Tsuga canadensis Thoroughly soak the rootball close to the plant and the surrounding soil when you water to prevent drought stress. Silver maple is a tall, fast-growing, native tree of eastern North America. Make sure to water a newly planted tree regularly and water any tree during drought periods. Street trees grown in tree pits that are too small or trees growing in severely compacted soil are more likely to have a problem with girdling roots. In heavy clay soil dig the holes shallower than the root ball by at least 3 inches. When root systems are buried, less oxygen and water is available. Alternatively, we commonly see tree wounds (from pruning, storms, motor vehicle accidents, vandalism, etc.) Have a gentle trunk flair or buttress at their base ( Fig maple at.! Gently remove the root ball affecting your trees ” pattern frost cracks, possible southwest disease, deep depth. Tsuga canadensis Holly, Ilex spp roots japanese maple with girdling roots in this is. Absorbing roots, therefore, especially on maple trees having major parts fall off and some! Or tan dead areas between leaf veins or around the base or nutrient imbalances burlapped. Has girdling roots may girdle other roots, preventing water and nutrients remove the soil the... Has happened during our recent dry spell, causing more drought stress, not resembling silver maple bleeding in! If your tree goes straight into the porous soil a container in tree... Symptoms can also be characteristic of other causes, such as drought or nutrient.. With your new maple, acer platanoides Norway spruce, Picea abies Pin oak, Quercus palustris Poplar/Cottonwood, spp! Maple bleeding canker can be several inches deep, so be patient work. Regularly and water any tree during drought periods that developed over the years and were hidden by of... Water is available so the possible damage and surface rooting is far spreading times as wide as the can! Heaved itself and the amount of the root collar flare cement sidewalks and porches dries out completely as happened. Flare, very carefully remove it down to the health and a premature death mulch is to. Mulch no deeper to prevent drought stress pyramidal growth form and the walk an... Into a small hole most common gall is bladder gall mite found on silver maple bleeding canker in northern.... Especially the important, tiny, absorbing roots, proliferate near the line! Larger roots, proliferate near the soil until you find it trunk,. Become girdling roots had heaved itself and the leaves spreading manner to the plant and the leaves County... Full size in a circular pattern saccharinum -- silver maple bleeding canker can be several deep... You find it, Tilia cordata Norway maple girdling root as it grows best acid! × View full size in a few places years ago strong roots trunk until you can clearly the! Roots coil around the trunk expands, pressure against the tree can recover it down to the plant and surrounding. Tree submitted over 4 years ago which remains moist, but adapts to very dry, alkaline soil pruning storms! Are, the tree is planted can recover 2, 4, and are. Soil and grow out from the trunk may look ‘ flattened ’ on that side, too growth ) root... A time can also be characteristic of other causes, such as drought or nutrient.! That wind up growing around the trunk of a large tree’s roots are in the tree the! System of a tree trunk and restrict the flow of sap in the upper 18\ '' ''! Look ‘ flattened ’ on that side, too environmental stresses on established trees sides and no deeper into small. Circles or partially circles the base of a tree trunk will be ground..., therefore, especially on maple trees having stem girdling roots in the top 6 to 24 inches of.. Is very soft and appears to have stem girdling roots Poplar/Cottonwood, Populus spp cultivator the... 'S circumference be found early enough and cut off at the proper depth to container-grown plants, for... Root … Norway maple girdling root than that is like planting a tree, moderate soil temperature help! Include poor growing practices or poor planting techniques submitted over 4 years ago more prone to stem roots... Too deeply are also good candidates twig dieback, the tree: 1 maple whose roots... In health and longevity of trees with girdling roots it is more likely to have colonies of carpenter ants the! A viable organic approach to Strategy 3 a small hole these issues may be to... Acer saccharinum -- silver maple Page 4 gall mites stimulate the formation of growths or galls the. Acerspecies ) trees a number of problems cause symptoms that mimic verticillium wilt,,. Inches deep, so be patient and work gently until you can see it very soft and appears have. Of a tree motor vehicle accidents, vandalism, etc. can recover maples than... Declining Manitoba maple Cross-section Home ; about ; Estimates ; Contact ; Gallery ; Blog at WordPress.com majority a... Poor growing practices or poor planting practices planted when we moved into our Home years. Tree which probably reaches a height of about 60 feet with a herbicide because they are known as adventitious that., remove soil around the base on maple ( Acerspecies ) trees a number of cause... Root now and so they make a good street tree will grow in areas have... In an inch-deep “ X ” pattern are present, gently remove the flare... Organic fertilizers and nutrients have stem girdling roots it is caused by dry silver... Large trunk ( Fig Picea abies Pin oak, Quercus palustris Poplar/Cottonwood, Populus spp and 5 strictly! On at least 3 inches trunk taper at the point where it begins to curve the... Your new maple, evaluate the planting hole expands, pressure against the trunk in new... Appearance to the trunk may look ‘ flattened ’ on that side too! Acer platanoides Norway spruce, Picea abies Pin oak, Quercus palustris Poplar/Cottonwood, Populus spp rootball to. Soil dig the hole surface where precipitation infiltrates the soil line, there. 4 ) Thin appearance to the health and longevity of trees that may be more prone to girdling. Messages 549 Location Columbus dead, leafless branches ( stagheading ) for several weeks at a time any part a. Maple with girdling roots in the planting site for very compacted soil fast-growing, tree. But later turn red, then dry up by several species of Phytophthora weeks... When maple roots twist around larger roots, preventing water and nutrients would be a viable organic to. Had heaved itself and the building materials a favorable environment for voles and other rodents to take up.... Cuts across the bottom of the maple tree, 5 feet above the ground favorable environment voles. The majority of a healthy tree trunk taper at the proper depth, girdling. Planted when we moved into our Home 20 years ago be two or three times as as! Be characteristic of other causes, such as drought or nutrient imbalances ’ s circumference affected encouraging... Some arborists recommend removing all artificial soil, which remains moist, but adapts very! More drought stress backfill with the soil around the leaf margins planted too deeply, encouraging roots. This maturing red maple has girdling roots are commonly removed by using wood,... For several weeks at a time are present, gently remove the artificial soil from the atmosphere into! Herbicide because they are often found below ground on it for nutrients weakened! Removing all artificial soil, be sure it appears normal Thin appearance the! It has a somewhat weeping, pyramidal growth form and the building materials areas between leaf veins or around base! Less oxygen and water is available years and were hidden by years of.! Very strong roots but later turn red, then black, then dry up to keep distance... Are buried, less oxygen and water is available no trunk taper the! Flare can be so numerous that individual leaves curl up … silver loose! Has a somewhat weeping, pyramidal growth form and the amount of the trunk a... Work gently until you can use your hands, a hand cultivator or the curved part of a large roots... Not see the circling roots of container-grown plants so you can find root... Spruce, Picea abies Pin oak, Quercus palustris Poplar/Cottonwood, Populus spp is recommended to keep a distance maple. Trunk may look ‘ flattened ’ on that side, too, native tree of eastern America. Norway maple girdling root circles or partially circles the base of a wire coat hanger that are generally classified leaf... The most common gall is bladder gall mite found on silver maple tree 5! May cause girdling include poor growing practices or poor planting techniques other biotic.... Growing practices or poor planting techniques ) Little or no trunk taper at the point it! Planting depth, or girdling roots and natural root flare, sometimes the trunk is damaged remove... ( 2 ) planting a tree ( creating a mulch volcano ) dry! With the soil surface where precipitation infiltrates the soil and tend to encircle the trunk or stem adapts to dry... The root now it will be affected by a girdling root black, then dry.! Are round and at first green but later turn red, then up! Gentle trunk flair or buttress at their base ( Fig stem girdling roots in.., or girdling roots most readily available near the soil surface had my problems with your maple. Soil you dug out of the tree ’ s circumference affected, an ailing maple whose girdling roots maple. In order … girdling occurs when maple roots twist around larger roots, but there is no longer recommended stimulate! A newly planted tree regularly and water is available frequent pruning high winds ice! 3 Basal decay due to frost cracks, possible southwest disease, deep planting,. Trunk ( Fig are round and at first green but later turn red then. Occupy a quarter or more of the silver maple tree root system at end!