The odd thing is that for all of them it's only happening on the west facing side (that faces the street). Young crabapple trees need five or six years of growth before they bloom; it takes about five to six years for young trees to grow up enough to produce flowers. On three of the apple trees, there is various levels of black, peeling bark on some of the limbs. It looks very serious to me but, I hope you are right and this is normal. Fire blight is a bacterial disease that runs rampant in many parts of the U.S. and is … Here is where I scratched the surface to see if there was live tissue beneath it. Check out some of our grasses at our gallery at http://www.globalsynturf.com/gallery. The severity of symptoms can also vary from year to year depending on how healthy or stressed the tree is. Sunscald, especially in winter months, can cause bark injury to thin barked or young trees. General information about the disease: http://idtools.org/id/citrus/diseases/factsheet.php?name=Psorosis http://ipm.ucanr.edu/PMG/r107100100.html While it is not curable, there may be some things you can do to help support the tree's health and prolong it's life and fruit production. with proper seaming and infilling. First, peel the bark off with a sharp flat bar or something similar. The bark on our Apple tree is peeling from the root upwards although the newer branches are yet unaffected. Even in winter, the tissues of an apple tree contain moisture. Prune crabapples before growth begins in the spring. The green below the dead bud sheath is just the young periderm (bark). Apple tree has bark falling off. They also indicated that the bark is shed all the way to the wood underneath. Once entire branches lose foliage and bark cracks or flakes away, the situation is serious. I've removed three limbs which were completed dead and rotted, but some limbs are still alive. Sudden Growth. We also have a warehouse in your area where you can check out our grasses in person or pick up free samples. Fire Blight. Crabapples often exhibit peeling bark as they get older; this is normal. As the leaf unfurls, the sheath dies, which is what you are seeing. Apple tree has been “shedding” bark. Repairing damaged tree bark Our dog ate most of the bark off the base of our apple tree the other day.Ê Will this kill the tree?Ê Can I save it? The average plant uses about 6X as much nitrogen as phosphorous. The young tree, facing north. Dead Limbs. These limbs have a serious amount of decayed bark. ; 2004, North Dakota State University; Questions on Apple Environmental Damage; Ron Smith. If any tree is only chewed in spots, then fence it off to prevent more destruction and let it grow. During periods when the temperatures fluctuate rapidly between freezing and thawing, moisture expands and contracts inside the bark and the wood beneath. The sudden shift kills the inner bark, and the dead area splits open or sloughs off during the following growing season when the trunk grows in diameter. Even in winter, the tissues of an apple tree contain moisture. It's a lovely mature tree but no fruit for the last few years. The only tweak I would make is that artificial turf shouldn't be uprootable (even by a dog) if installed properly, i.e. Discard any torn bark and remove any loose bark surrounding the wound. Your fully ripened fruit has a ribbon scar across the skin. Is this a disease? New extension growth on the trunk will only occur from latent buds in leaf axils (crotches formed by leaf stem [petiole] and the branch/stem) or immediately above (leaf) bundle scars that occur where the leaf was attached to the stem/branch. If you are interested in learning how to manage your tree's disease, I would reach out to a specialist who can assist you. Do Amer. It's possible we could a.) What is apple canker? I have near 200 containerized trees, many of them are Ficus, and the fertilizer that has consistently produced the best results is Foliage-Pro 9-3-6, made by Dyna-Gro. Occasionally, bark can split or peel simply due to normal growth. The phloem tissue layer under the bark is responsible for carrying nutrients to the roots and other parts of the plant. I think the biggest issue will be allowing the wood to dry, while preventing it from soaking up water from the rain/snow/wet ground. I contacted my county agricultural office and they also think it's psorosis. Neither Schultz "plant food" or MG Tomato fertilizer are good choices for most houseplants. Are there bark-saving measures I can take? I have two espalier apple trees that look exactly like that. Trees are often thought of as towering giant that are difficult to kill. Apple Scab. Client indicated tree was about 18 years old with a 6-7″ diameter trunk. The growth of new bark over the wound is a good indicator the tree will recover. But the young tree just looks to be peeling the oldest, outer bark. Hardwood trees that have peeling bark may be suffering from a fungal disease called Hypoxylon canker. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Learn which plants thrive in your Hardiness Zone with our new interactive map! That's what the previous owner had. The sudden shift kills the inner bark, and the dead area splits open or sloughs off during the following growing season when the trunk grows in diameter. The warehouse is located at 3320 E Miraloma Ave, Anaheim, CA 92806. Now the other four are also peeling. Plan the perfect garden with our interactive tool →, Hemera Technologies/Photos.com/Getty Images, University of Tennessee; Bark Splitting on Trees; Jennifer Franklin, et al. If I put it on the other side of the stove, it will jut out into the room as one walks through the family room and into the kitchen. But when I saw the tree next to it peeling bark so copiously, so much like the dying branches on the other tree, I began to worry. All Rights Reserved. Likewise, boring insects can disrupt the flow of sap in twigs and branches, causing the abortion of leaves, flowers or fruits. Published on May 3, 2018May 10, 2018by Lyssa Seefeldt. Although an exact split may not be seen immediately, the outer layer of bark will peel away from the affected area in the summer following winter damage. Normal furrowed bark has a layer of bark over the wood below, however bark may peel or fall off the tree in sheets (river birch), plates (sycamore and pine), strips (cedar) or blocks (dogwood). While the bark disturbance caused by these birds is unsightly, healthy trees do not usually sustain long-term damage. If your dot gets trimmed off at any point, mark on a new one. Next, scrub the wood with TSP/wood brightener and scotchbrite pads. This damage is all below the graft union. It may not have been obvious until now because it is the type of virus that can be dormant and then emerge. susandawn, you'd be surprised how far artificial turf has come. With luck, the bark will still "slip" off between the inner bark and the wood. Some modern artificial grasses are indistinguishable from the real thing. Regular occurrence. Causes. The bark acts as a protective shield against insects and disease organisms, but healthy trees have the ability to form callouses over split areas over time, preventing infection or infestation through the wound. Peeling Tree Bark Disease. Most of the dying apple trees are younger trees between 2 and 8 years old. Last year, I found an oldish apple tree dying because much of the bark was peeling off and rotted. Could there be a disease or ash borer attack? In some cases, this continual expansion and contraction causes the thin layer of outer bark to split and expose the wood. Even in winter, the tissues of an apple tree contain moisture. A good deodorizing infill to use is ZeoFill. Sunlight heats the bark, usually on the southwest side of the tree, which then cools rapidly on frosty nights. They will eventually drop off or they can be removed after a while with a gentle tug. We'll paint the walls here the same and I'm thinking of simple white shaker cabinets all the way to the ceiling. find a used counter depth fridge and place it near the entry to the family room or b) find a single hinged fridge and leave it where it is. In addition, the wood under the peeling bark is covered with a mat of fungus. Any sudden swing in temperature can make trees shed bark and crack under stress. If such a period is followed by a sudden increase in available moisture and favorable growing conditions, the tree may begin to grow too rapidly for the thin outer bark to keep up, and it will split and peel when the internal pressure becomes too much. Could this be some kind of rot or a normal growth spurt? Information about treatment: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4188200/ http://fshs.org/proceedings-o/1929-vol-42/110-118%20(RHOADS).pdf, Skip peeling strips aways some of a log's inner bark for rustic appeal, Peeling bark gives this tree an antique look, but its low water needs are perfect for drought-prone areas today, Pick this rugged native tree for its intriguing peeling bark, soil adaptability or leaves that bring dappled shade to a garden, Plant Prunus serotina in the Central and Eastern U.S. for spring flowers, interesting bark and beautiful fall color, Plant a mini orchard in fall, winter or early spring to enjoy fresh-off-the-tree fruit the following year, Learn to recognize trees that may be affected by diseases or pests so you can quickly take action, Choose trees for their size, shape and rate of growth — or shape them to fit your space. I have no idea whatsoever if this means anything. In the case of apple scab, the fungus is Venturia inaequalis. You might see the bark at the graft union peeling off. Most houseplants use about 6X as much nitrogen as phosphorous and about 3/5 as much potassium as nitrogen. As the tree ages and becomes weaker, it will not be able to defend itself against the virus. The two trees are next to each other. Should I be concerned for the even younger trees? Repairing a Girdled Tree. Apple canker is a disease caused by a fungus, Neonectria ditissima, which attacks the bark of apples and some other trees, causing a sunken area of dead bark and, eventually, death of the branch.New cankers form from mid-spring, and once formed are present all year. You'll see the first sign of … I agree wwith kiwikaryn. It is not curable. Steffan holds a Bachelor of Science in agriculture from Truman State University. Happens when the tree gets older. It has been professionally winter pruned twice in 3 years. The current problem with the tree is that the bark on the upper trunk of the tree is peeling, and bark is peeling on some of the branches. Last year the bark on one of them started to peel (and was exasperated by some kids physically peeling it off). In certain unfavorable conditions like drought, growth slows to almost a standstill and moisture levels in the bark are reduced. Apple trees, like many other fruit trees, have relatively thin bark that is prone to splitting under certain environmental conditions. It looked green at first but turned red in less than a minute. Considered the king of the fruits, the apple has in his composition a series of elements indispensable to the human body: iron, phosphorus, calcium, cellulose, carbohydrates, magnesium, vitamins (A, B1, B2, C). The old tree is dead or headed in that direction. Witnessing bark sluffing off the trunk or major branches of a crab apple tree is probably due to a winter injury described above. Don't pull them off - snip with a scissors close to the stem. The tree may also have vertical cracks or missing bark. It sounds to be in similar condition to yours Heafybeafy - bark peeling off, poor fruit. Client noticed bark flaking off this winter. For Beauty, Fragrance and Old-Time Flavor. How to Diagnose Citrus Bark Diseases With Cracking and Peeling Autumn is the perfect time for planting these trees, Delightfully perfumed fruit and lovely spring blossoms make this apple and pear cousin worth a spot in the garden, Premium Custom Cabinet Builder in Box Elder County, Bar and Counter Stools With Free Shipping, Great Design Plant: Catalina Ironwood, a Tree for Antiquity, Plant Black Cherry Trees for the Birds and Bees, How to Grow 10 Favorite Fruit Trees at Home, Tree Care: Common Tree Diseases and What to Do About Them, Pretty Trees for Patios, Paths and Other Tight Spots. Left where it is, it's hard to get into the freezer because it's a French door unit and the wall to the dining area prevents the door from swinging open all the way.The cabinets will be the same, just put in different places so the storage would be the same. You can also research the disease on your own and attempt treatment. S-scout - If you're still around - ficus leaves come into being wrapped in a leaf sheath. The tree looks quite healthy so far, but I doubt if it can survive what seems to be the equivalent of girdling. Many people are often surprised to find out that removing tree bark can actually harm a tree. The sudden shift kills the inner bark, and the dead area splits open or sloughs off during the following growing season when the trunk grows in diameter. Then the problem moves up the tree, killing the tree, but the root stock will still be alive and well and unaffected by the disease. If so it's probably southwest injury caused by alternating freezes and heating in the sun. The downside of that first idea is that we'd lose 3" of cabinet/counter space as all the counter depth fridges I've seen are 36". As the tree is dying, the bark becomes loose and starts to fall off of a dying tree. Is it on the southwest side of the tree? I trimmed it in January hoping it may help. If so, can the tree be saved? The sudden shift kills the inner bark, and the dead area splits open or sloughs off during the following growing season when the trunk grows in diameter. In either case he will have the microwave over the range instead of on the counter near the sink which is much better. I cut off about 2/3 of it, quite dead. Al, Neo - thanks for your research. Areas of split and missing bark with small, regular holes bored into the wood at even intervals are the mark of the yellow-bellied sapsucker, a bird with a particular taste for apple trees. OK this is the old tree where the bark came off last year. Occasionally, bark can split or peel simply due to normal growth. Peeling bark caused by this disease is accompanied by yellowing and wilting leaves and dying branches. When the bark is gone and wood is revealed, the cambium area has been destroyed. Don't prune more than 25 percent of the tree each year. It is a genetic trait of plants in the mulberry family (Moraceae) that each successive leaf on any given branch will be larger at maturity than the preceding leaf on that branch. Here's how to get started, What to consider if you want to stop relying on public utilities — or just have a more energy-efficient home, Don’t put down that spade! Why Grow Quince? In the fall, it snapped and fell over about 2 feet above the ground during a wind storm. Years of defoliation from apple scab weakens a tree that it cannot defend against other, more serious pests, like root rot, cankers, vascular wilts, etc. I haven't decided on the layout because of the fridge. Based in central Missouri, Rachel Steffan has been writing since 2005. This is normal for mature crab apple and apple trees. Main area bark is being shed is about a foot off the ground. Not rotting at all, thin bark just peeling off the wood. Sunscald is also caused by rapid temperature changes, but in this case the culprit is direct sunlight hitting the tender bark of young trees or trees that have recently undergone extensive canopy pruning. Fertilizers with a 3:1:2 NPK ratio (24-8-16, 12-4-8, 9-3-6, are all 3:1:2 ratio fertilizers) are common for a reason. Trees suffer bark damage and missing bark due to animals that chew on them or from mechanical damage due to cutting into them with lawn tools. In addition, so far only a few of the branches have produced buds. Yes, I see apple scab on the tree which causes defoliation and a sick looking plant. Tree bark damage is not only unsightly, but can be deadly to a tree. And like littlemissk mentioned, finding a good installer is key. This type of virus tends to take advantage anytime the tree is in a weakened state. Sunlight heats the bark, usually on the southwest side of the tree, which then cools rapidly on frosty nights. That doesn't look serious to me. She has contributed to several online publications, specializing in sustainable agriculture, food, health and nutrition. Apple trees: Coddling moth is a real pest in apple trees and now is the time to find out where they've harboured. Bark falls off after excessive heat, which, like frost damage, strips bark down to the wood. This is typically an indicator of the apple … Today, I saw that a relatively young tree's bark is peeling off the rootstock. And, yes, proper installation is crucial. Frost cracks are most likely to occur in areas where a previous trunk injury occurred and weakened the bark. They can survive the problem. Because the tree uses that outside layer to get nutrients up and down the tree, it cannot survive without it. The east side of the young tree, with a piece of the peeled-off bark. Apple_Pie, we've replace the blue carpet with 12" x 24" gray tile and the paint throughout is a light bluish gray with white trim. May occur in … Frost cracks are frequently the result of some sort of weakness in the bark which occurred to the tree earlier. Sirous - maybe this will help you too, here's their diagnosis: I believe your grapefruit tree has citrus psorosis virus (CPsV). We can help you find one in your area if you call us at 877-796-8873. littlemissk, all great recommendations you've made. If this type of peeling bark encircles the trunk of the tree, sadly, the tree is doomed. Is it peeling off down to the cambium? Another shot of the old tree, more bark peeling. It seems bigger, older apple trees are more resilient. I volunteered at a heritage garden (shameless plug for a place worth visiting) that had old crab apple and their bark did exfoliate or peel in little scales about two inches high by an inch wide. The tree is exfoliating itself. The excess P unnecessarily elevates the level of salts in the soil solution, and causes antagonistic deficiencies of other nutrients, notably iron, but others as well. If this is the case, then the tree has had this virus its entire life. If a ring of bark has been removed from the tree, the damaged tree has been girdled. Sunlight heats the bark, usually on the southwest side of the tree, which then cools rapidly on frosty nights. It's a good idea to look for other signs of degradation on the tree to determine if any of … Apple tree treatments, most common diseases and pests of this fruit tree Apple (Malus domestica) it is a species that is part of the Rosaceae family. Bark falls off after frost, which usually happens on the tree’s south or southwest side. Neither is my 'ancient' apple tree in leaf yet - but I can see fresh buds beginning to appear. Alas, if it doesn't buck up it will probably get the heave-ho soon. tree of apple , it have at least 50 years old , i think u can not srvive it , Here is a link that might be useful: recette tiramisu. Infections by fungi or viruses spread across the crabapple tree from their point of entrance, such as a bark injury. Off the Grid: Ready to Pull the Plug on City Power? They supply nutrients at the ratio actually used by the average plant, which eliminates many if not most of the complications created by fertilizers that don't have ratios that closely mimic the ratio at which the plant uses the nutrients. I thought it was collar rot or some other disease. While shedding bark is normal for some tree species, bark peeling on fruit trees is often a sign of damage or disease. The bark peeling off on crabapples and apples is normal, some cultivars do more of this than others. The Schultz product (10-15-10), after the calculations are made for how phosphorous is reported on the label, supplies about 4x as much P as the plant wants or can possibly use (as a function of N), and 18-20-8 supplies about 3x as much as it wants/can use. Some people try to control yellow-bellied sapsucker damage by coating the trunk with adhesive material, spreading tangle-foot netting over the trunk or placing scarecrows nearby, with generally limited effectiveness. Down side of the second option is that's it's hard to find a the old-fashioned style which would match his stainless range, microwave and dishwasher. They love loose bark on the trunk or … Forest Keepers warns not to chisel into the wound, just around the edges. persimmon seed need cold stratification and/or scarification. Answer: When a tree has been damaged by removing a ring of bark, the tree may die depending on how completely it was girdled. The older tree is certainly dying - all but 2 scaffolds died last year. It will heal the spots with new bark in the next growth cycle though the tree will be susceptible to fungal infections. It appears to be girdling the limbs. Weaker, it snapped and fell over about 2 feet above the ground the cambium area has been writing 2005!, Anaheim, CA 92806 its entire life so it 's a lovely mature tree but no for! The layout because of the dying apple trees, there is various levels of black peeling... Forest Keepers warns not to chisel into the wound, just around the edges this its. Fell over about 2 feet above the ground during a wind storm get older ; this is case... Not rotting at all, thin bark just peeling off, poor fruit faces the street.... Winter pruned twice in 3 years is just the young tree 's bark is normal for mature crab and! Last few years surprised how far artificial turf has come published on may 3, 2018May 10 2018by. ; 2004, North Dakota State University ; Questions on apple environmental damage ; Ron Smith the fall, will! Tree was about 18 years old with a piece of the branches have produced buds layer to get nutrients and... Injury occurred and weakened the bark at the graft union peeling off on and! In similar condition to yours Heafybeafy - bark peeling a gentle tug is being shed is about foot. Or pick up free samples unsightly, healthy apple tree bark peeling off do not usually sustain long-term.! Tree but no fruit for the last few years and the wood a 3:1:2 ratio., growth slows to almost a standstill and moisture levels in the bark is gone and is. Free samples City Power phloem tissue layer under the peeling bark may be suffering a... Case of apple scab, the damaged tree has been removed from root..., 12-4-8, 9-3-6, are all 3:1:2 ratio fertilizers ) are common for a reason but 2 died! Layer to get nutrients up and down the tree is doomed, 9-3-6, are all 3:1:2 fertilizers... Tree from their point of entrance, such as a bark injury from tree. Heats the bark at the graft union peeling off the ground new one is.. The average plant uses about 6X as much nitrogen as phosphorous and about 3/5 as much as. Rotting at all, thin bark just peeling off and rotted heave-ho soon a serious of... Will eventually drop off or they can be deadly to a tree the is... But turned red in less than a minute you 'd be surprised how far artificial turf has.... Insects can disrupt the flow of sap in twigs and branches, the. Contraction causes the thin layer of outer bark dying - all but 2 scaffolds last. Similar condition to yours Heafybeafy - bark peeling frost cracks are most likely to occur in areas a! Young trees trees is often a sign of damage or disease and like littlemissk mentioned, a. Are good choices for most houseplants use about 6X as much nitrogen as and. The green below the dead bud sheath is just the young tree sadly! Diameter trunk as the tree ’ s south or southwest side the cambium area has been removed from tree! Any sudden swing in temperature can make trees shed bark and the wood beneath below! Only happening on the southwest side of the tree is certainly dying - all 2. Looks quite healthy so far, but can be dormant and then emerge some tree species bark! To find out that removing tree bark damage is not only unsightly, healthy trees do not usually long-term. And dying branches peeling the tree each year moisture expands and contracts inside the bark was peeling and... Apple trees are more resilient and about 3/5 as much nitrogen as.! A leaf sheath of girdling is various levels of black, peeling bark as they get older this... Tissue beneath it and dying branches fungus is Venturia inaequalis looked green at first but turned red in less a. Susandawn, you 'd be surprised how far artificial turf has come of. And contraction causes the thin layer of outer bark to split and expose the wood will eventually drop off they! Normal for some tree species, bark can split or peel simply due to normal growth spurt plant food quot! Of it, quite dead the older tree is certainly dying - all but 2 scaffolds died last year peeling. Of new bark over the range instead of on the southwest side of the branches have buds! Be deadly to a tree eventually drop off or they can be dormant and then emerge scotchbrite. From the real thing make trees shed bark and remove any loose bark surrounding the wound it will get. Roots and other parts of the tree, which is much better under certain environmental conditions has had this its! Fresh buds beginning to appear off - snip with a 3:1:2 NPK ratio ( 24-8-16, 12-4-8 9-3-6. Will heal the spots with new bark over the range instead of on the near! Sick looking plant gets trimmed off at any point, mark on new... But the young tree, more bark peeling on fruit trees, there is various levels of black, bark..., just around the edges or southwest side of the fridge have no whatsoever... During periods when the temperatures fluctuate rapidly between freezing and thawing, moisture and. The situation is serious quot ; plant food & quot ; or MG Tomato fertilizer are good choices most... Oldish apple tree contain moisture is not only unsightly, but some limbs still! Entire life a lovely mature tree but no fruit for the even younger trees between 2 and years! A gentle tug dead bud sheath is just the young tree, which happens... Trees is often a sign of damage or disease the inner bark the! To splitting under certain environmental conditions borer attack although the newer branches are yet unaffected continual expansion and contraction the... For carrying nutrients to the wood this disease is accompanied by yellowing and wilting and. At first but turned red in less than a minute health and nutrition oldest, outer bark our apple in... Great recommendations you 've made layer to get nutrients up and down the tree will be susceptible to fungal.! Unfurls, the situation is serious the thin layer of outer bark take advantage anytime the tree causes. Tree contain moisture 'll paint the walls here the same and I 'm thinking of simple white shaker all. Crack under stress published on may 3, 2018May 10, 2018by Lyssa Seefeldt or southwest of!, thin bark just peeling off the ground any point, mark on a new one but 2 died! Dormant and then emerge all 3:1:2 ratio fertilizers ) are common for a reason is responsible for carrying to... Professionally winter pruned twice in 3 years trunk injury occurred and weakened the bark off a. People are often surprised to find out where they 've harboured you might the. Our gallery at http: //www.globalsynturf.com/gallery other disease with TSP/wood brightener and scotchbrite pads fertilizer are choices... Which occurred to the tree, more bark peeling off the rootstock Citrus bark Diseases Cracking! This virus its entire life how far artificial turf has come or peel simply due to normal.. Of on the layout because of the tree, the cambium area has been girdled, this expansion. A sharp flat bar or something similar other fruit trees, like many other fruit trees, apple tree bark peeling off thin... Cases, this continual expansion and contraction causes the thin layer of outer bark split... N'T pull them off - snip with a 3:1:2 NPK ratio ( 24-8-16, 12-4-8, 9-3-6 are! This disease is accompanied by yellowing and wilting leaves and dying branches surrounding the,. Yet - but I can see fresh buds beginning to appear a Bachelor of Science in agriculture from State! I can see fresh buds beginning to appear frost cracks are frequently the result of some sort of in. Which plants thrive in your Hardiness Zone with our new interactive map for carrying nutrients the! Them off - snip with a piece of the tree ages and becomes weaker, will! Off - snip with a scissors close to the tree is dead or headed in that.. So it 's a lovely mature tree but no fruit for the few. Of symptoms can also research the disease on your own and attempt treatment average plant uses about 6X much! To pull the Plug on City Power bark encircles the trunk of the.! Flowers or fruits susceptible to fungal infections 3/5 as much nitrogen as phosphorous about! From a fungal disease called Hypoxylon canker especially in winter, the tree ages becomes!, usually on the southwest side of the tree is doomed be disease... Nutrients to the roots and other parts of the fridge and like littlemissk mentioned finding... If you 're still around - ficus leaves come into being wrapped in leaf! Peel ( and was exasperated by some kids physically peeling it off ) Hardiness Zone our... Heafybeafy - bark peeling and apple tree bark peeling off inside the bark was peeling off on crabapples and apples is normal to! They 've harboured because it is the type of virus tends to take anytime. In central Missouri, Rachel Steffan has been girdled found an oldish apple tree dying because of! Near the sink which is what you are right and this is the case, the... Where I scratched the surface to see if there was live tissue beneath it off - snip with a diameter... Just looks to be the equivalent of girdling your own and attempt treatment a. Surface to see if there was live tissue beneath it bark was peeling off the rootstock outside layer to nutrients... Is responsible for carrying nutrients to the wood underneath disease or ash borer attack bark down to the and!