This is common during branch breakage and when the trunk of the tree has been scraped. Woodpeckers will strip off pieces of bark, leaving lighter exposed layers.  Holes longer than 1/8 inch, or holes that are round rather than flattened on one side, are not EAB. This bark wound is on a 15” diameter autumn purple ash. Girdling is more serious. Signs and symptoms of an …  If you believe you have strong evidence of EAB in a tree, you can report it through the Texas Invasives Website reporting form for this pest, or contact your local AgriLife Extension or Forestry Service office. Wood below the bark layer is exposed. Emergence holes of emerald ash borer are small, only 1/8-inch across. Other conditions (disease, soil compaction, etc.) Bark Tracing – or Cutting Away Damaged Tree Bark. This bark wound is on a 15” diameter autumn purple ash. Using a clean, sharp chisel, cut away any jagged and lose edges from the wound. Do you think the wound will heal? AgriLife Extension's online Bookstore offers educational information and resources related to our many areas of expertise and programming; from agriculture, horticulture, and natural resources to nutrition, wellness for families and youth, and much more.  As I drove down the Hoosier highways it was both impressive and sobering to see all the dead ash trees scattered throughout the landscape. We also depend on the eyes and knowledge of thousands of gardeners, invasive pest spotters, master volunteers and pest management specialists throughout the state. And sometimes you’ll see woodpeckers feverishly pecking at the … Neighbor thought maybe a lightening strike, having experienced a very close strike a couple of days prior. Vari- ous species of woodpeckers feed on emerald ash borer and produce holes in the bark surrounded by light coloured patches (A, B). Agree, NO wound dressing. Crown thinning You will begin to see thinning of the leaves in the canopy, usually starting at the tops and sides. Emerald ash borer eggs are laid beneath the surface of ash tree bark, chewing galleries through the tree and causing irreversible damage. Ash blonding – Notice the lighter colored bark and the bark chunks at the base of the tree. Canopy thinning. As the attack progresses, bark cracking continues and the upper ash canopy shows signs of thinning. Take care not to remove any healthy bark and expose more live tissue than necessary. Emerald ash borer populations build up to very high numbers as they move into new areas, which provides a great source of food for woodpeckers. Tree wounds often appear ragged where the bark is torn during the injury. It is approx 2.5’ long and 3” wide at the deepest point. Eventually mature adults exit the tree to start the process again. (See the page on diseases of ash trees … Sorry. Aphids and scales are known as the piercing and sucking insects. It happened about 6 weeks ago after a very cold night. To repair this type of damage, cut off any ragged bark edges with a sharp knife. If less than 25% of the bark around the trunk has been damaged, the tree will probably recover. Damage will appear in the form of lost leaves and dead branches. We found the damage after returning from out of town. Ash Tree Bark Peeling - Reasons For Bark Coming Off Ash Trees It’s a host to critters and fungus.  For more images of woodpecker signs, see this publication from Michigan State University. Photo by M. Merchant, Texas A&M AgriLife. You might give the tree some extra water if we enter into any long drought-like periods. The students searched for and painted all the holes they found in the bark of each tree — different colors for the woodpecker holes, the emerald ash borers holes and holes made by other insects. They attack only ash trees, especially the green ones. Many Ash, fruit, Linden, Maple, Pine/spruce, and Willow are looking stressed and strained this year; the Colorado State Forest Service even sent out a short press release on these events: Here is a page with a little extra advice on preparing trees for winter: https://csfs.colostate.edu/2016/10/26/fall-tips-prepare-trees-winter/. Flatheaded appletree borer. Know your ash! Ash trees with the outer bark removed may be infested with either emerald ash borer or a native ash bark beetle. Yes, this is mostly due to a rapid freeze and snow we had this spring as well as to some extent a rapid temperature fluctuation we had this past October. Woodpeckers are the most important source of EAB mortality, though unfortunately they cannot prevent beetle attack. Minor damage extends up one of the branches as shown. Woodpecker damage The first sign you might see is woodpecker activity on your ash trees.  These are emergence holes, used by the adult form of the insect to leave the tree in search of a mate, and the next ash tree to attack. Aphids and Scales. Canopy thinning and epicormic shoots at the base of an ash tree under attack by emerald ash borer. What are mouthparts on insects like, and how can I see them? But, I want to explicitly recommend against using "wound dressings" or sealants . Minor damage extends up one of the branches as shown. No canopy damage or signs of burning. The more serious concern in … But now, infestations at the base of the tree are blocking all upward flow of nutrients, and the trees are dying within a single season.  Emerald ash borer is known to attack only ash and a related tree called white fringe tree, Chionanthus virginicus. 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