Emerald Ash Borer

If you have ash trees, you need to be informed about an invasive tree pest that is spreading in Missouri and throughout the St. Louis area. Trees in at least 15 states have suffered through the spread of emerald ash borer, and taking a proactive approach will go a long way in stopping its spread.

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CALL FOR A FREE ESTIMATE:    636-391-9944  |  55 Old State Road |  Ellisville, Missouri 63021 |  Fax: 636-391-9948

What Is Emerald Ash Borer (EAB)?

Emerald ash borer is an invasive pest first introduced from Asia to North American around 2002. This small, metallic green beetle is about half an inch long and spread from Michigan to other states such as Indiana and Illinois before making its way to Missouri.

Steps to Identify Emerald Ash Borer Damage

Step 1: Is your tree an ash tree?
Before you begin to worry about emerald ash borer, you must first determine if you have an ash tree because ash trees are the only ones affected by this pest.

To determine if your tree is an ash tree, check for all of the following:

  • Oppositely branched – Do the branches of your tree form a Y shape, or are do they alternate rather than line up in that shape? If so, your tree may be an ash tree.
  • Compound leaves – Do the leaves join together on a woody stem by a stalk, forming a grouping of leaflets? Trees that are not ash trees have single leaves joined by a stalk to a woody stem, so if you have groupings, your tree is more likely to be an ash tree.
  • Numerous leaflets – Do the leaflets group in sets of 5 to 9 rather than in 3 to 5 groupings?

If you are uncertain if your tree is an ash tree, a certified arborist can help you! At Omni Tree Service, we have the skills and experience to identify and care for trees of all kinds.

Step 2: Does the tree show signs of damage?

Has your tree been damaged by emerald ash borer? To know for certain, check for these problems:

  • Sparse leaves an/or dying branches in upper crown
  • New sprouts on lower trunk and branches or on the roots
  • Short, vertical splits in the bark about three to five inches long
  • Increased woodpecker activity
  • Winding, S-shaped tunnels under the bark
  • White or cream colored larvae under bark

Step 3: Does the tree have multiple D-shaped holes?
EAB make D-shaped holes in the trunk of ash trees that are about ⅛ inches thick. If you are having trouble seeing the true shape of the hole and think it might be D-shaped but the bark is blocking your view, you might try using a knife to slightly shave the bark flat to get a better view of the hole.

LEARN ABOUT OTHER COMMON TREE PROBLEMS

Emerald Ash Borer Prevention

If your tree is infested with EAB, there are steps you can take to stop the spread of the pest. For one, don’t move firewood of trees that have been infested. If you are camping somewhere, buy your firewood locally and burn it all before you leave a campsite rather than bring it home. Also, if you are traveling to a campsite, leave your firewood at home.

Unfortunately, EAB infests ash trees and not other types of trees. To avoid the spread of EAB, plant other large shade trees instead of considering ash trees for your landscaping. Keeping informed about EAB and where it has spread will also help you stay ahead of the problem.

If you suspect your tree has been infested or would like additional help with tree removal, contact the experienced tree care professionals at Omni Tree Service today!

St. Louis Tree Care Company
Don’t leave your trees to chance and the elements – let us help bring them new life & make your yard look fantastic.

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636-391-9944
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