BugEmerald Ash is an invasive, wood boring beetle. It kills ash trees by eating the tissues under the bark

A tree that has been attacked by EAB can die within 2-4 years.

Between June 2006 (left) and August 2009 (right), ash trees along this street in Toledo, Ohio, showed the devastating effects of the Emerald Ash Borer. (Photos: Daniel Herms)

Between June 2006 (left) and August 2009 (right), ash trees along this street in Toledo, Ohio, showed the devastating effects of the Emerald Ash Borer. (Photos: Daniel Herms)

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Plan was completed and implemented in 2009.

Emerald Ash Borer was first found in the City of West Allis in the spring of 2015 in an isolated spot adjacent to I-894 along S 101 St. In the spring of 2016 EAB was found in an ash tree being removed in the 1500 block of S 96 St. EAB has also been found in LaFollette Park. As a result of these finds, the Forestry Division is increasing its removal of poor quality ash trees to approximately 175 trees per year. This is in addition to the approximately 500 trees removed annually due to various other reasons.

2009 mapped 4,319 Ash Trees

2016 mapped 4,116 Ash Trees

Fall of 2015 treatments:

Not Treated = 679
Hydraulic Soil Injection = 137
Air/Hydraulic Gun = 2,856
Tree IV = 442

Ash Removals

2015 = 71
2016 Through August = 106

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