K. L. Tree Care and Removal
  Emerald Ash Borer
Emerald ash borer (EAB), Agrilus planipennis Fairmaire, is an exotic beetle that was discovered in southeastern Michigan near Detroit in the summer of 2002. The adult beetles nibble on ash foliage but cause little damage. The larvae (the immature stage) feed on the inner bark of ash trees, disrupting the tree's ability to transport water and nutrients. Emerald ash borer probably arrived in the United States on solid wood packing material carried in cargo ships or airplanes originating in its native Asia. Emerald ash borer is also established in Windsor, Ontario, was found in Ohio in 2003, northern Indiana in 2004, northern Illinois and Maryland in 2006, western Pennsylvania and West Virginia in 2007, Wisconsin, Missouri and Virginia in the summer of 2008, Minnesota, New York, Kentucky in the spring of 2009, Iowa in the spring of 2010, Tennessee in the summer of 2010, Connecticut, Kansas, and Massachusetts in the summer of 2012, New Hampshire in the spring of 2013, North Carolina and Georgia in the summer of 2013, Colorado in the fall of 2013, New Jersey in the spring of 2014, Arkansas in the summer of 2014, Louisiana in the winter of 2015, Texas in the spring of 2016, and Nebraska and Delaware in the summer of 2016. Since its discovery, EAB has:
· Killed hundreds of millions of ash trees in North America.
· Caused regulatory agencies and the USDA to enforce quarantines and fines to prevent potentially infested ash trees, logs or hardwood firewood from moving out of areas where EAB occurs.
Cost municipalities, property owners, nursery operators and forest products industries hundreds of millions of dollars.

Cited from: http://www.emeraldashborer.info/

Ash trees have become a big part of our removal workload in the last year. From experience, removal earlier in the dying process is better than later and most cost effective. Treatment is an option and has gotten better over the years but is not guaranteed to save the life of the affected tree, and some treatments can be quite costly.

Helpful links to help you decide if a treatment option works for you:



How Do I Know If My Tree Is Dying?

Trunk Damage

Are there vertical cracks on the tree in question? Severe damage to the trunk of a tree can greatly affect the likelihood of your tree’s survival. In addition to any cracks or seams on the trunk, take a look at the bark on the tree — or lack thereof.
When a tree ages, old bark will fall off on its own and eventually be replaced by a new layer of bark if the tree is healthy. If new bark doesn’t reappear and areas of smooth wood remain, this can be an indicator your tree’s health is on the decline.

Bare Branches

How are the tree’s branches looking? One warning sign is if the branches are bare during a time of the year when they should be covered in leaves. Also keep in mind that on dead branches of deciduous trees, dead leaves will cling well into the winter instead of dropping to the ground as they would on a healthy deciduous tree.
And dead branches relegated to one side of a tree can also indicate serious trunk and root damage.

Damaged Roots

Since roots can run very deep underground, determining if your tree’s roots are damaged isn’t always easy or visible. Recent excavation projects, new construction, a shallow root system, exposure to extreme elements and poor soil compaction are all things that can affect the vitality of a tree’s roots.
One serious sign of root damage is a sudden and noticeable lean to the tree. Another is if you begin to notice small branches sprouting from the trunk at the base of the tree. This type of branching is known as epicormic shoots and these can represent that the tree is under severe stress.


Large fungus — shelf or bracket fungus (aka wood conchs) — on the trunk or branch of a tree can indicate that your tree is experiencing internal rot and anything beyond the fungus may be dead or dying.   [tree maintenance will help identify fungus on tree trunks]


Has your commercial property taken on some new construction? Were some but not all of the trees in or around the construction area removed? Those trees spared may be experiencing a significant increase in their exposure to sun and wind, which can detrimental to their health.
Nearby construction can also damage roots, soil compaction and changes in the grading.

Other common signs of tree decine are:

- Reduced Twig growth

-Small dead branches in the upper canopy in late spring or early summer

-Dead, brittle, or decaying roots

-Fall colored leaves in July or August

What Is The Difference Between Decline And Dieback?

Decline is a general term describing the detrioration of a trees crown or overall health and vigor.

Photo at right is an example of a declining tree.

Dieback describes localized symptoms within the canopy with dead or dying branches surrounded by healthy living ones.

Photo below is an example of dieback.

A helpful link for examples of ill health trees.