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EAB for Homeowners
Identification & Biology
Ash Identification Presentation
EAB Look-Alikes
EAB Locations
EAB Management
Protecting Ash Trees with Insecticides
Quarantine Information
Information for Industries and Organizations
Self Study Programs
Arrest that Pest and Other Educator Resources
Report a Suspected Infestation
EAB on YouTube
Identification and Biology - Ash

The Biology of Ash Trees

cross section of tree

Cross section of a tree trunk.

(Andri Eloff, Wnyboer )

Ash trees are considered ring-porous, which means that their vascular vessels are relatively large and concentrated directly under the bark. This characteristic makes ash trees especially vulnerable to attack by EAB larvae, which restrict their feeding to tissue in the ash tree’s cambium layer.

The vascular systems of diffuse-porous trees, such as birch, are characterized by vessels spread evenly throughout the sapwood. 

Back to Ash Trees in Indiana

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