April 13, 2015

Ash Tree Health – What is a Healthy Ash Tree?

All ash trees have opposite, compound leaves, and opposite branches and twigs. The bark of ash is ashy gray or gray brown, furrowed, with narrow interconnecting ridges connecting diamond-shaped spaces.

A healthy ash will be fully leafed out, have a good root flair, good branch unions, good growth vigor, and few if any signs of EAB.

Healthy Ash Tree

Unhealthy Ash Tree

Further Resources

Iowa State University Extension
http://www.extension.iastate.edu/psep/EmeraldAshBorer.html

Iowa DNR, USDA Forest Service, USDA APHIS, and ISU Extension
http://iowatreepests.com/eab_regulations.html

ISA Trees are Good
http://www.treesaregood.com

Emerald Ash Borer University
http://emeraldashborer.info/iowainfo.cfm