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Indiana Department of Natural Resources

DNR Home > Divisions > Communications > Outdoor Indiana Magazine - Archives > Outdoor Indiana - January/February 2009 > Outdoor Indiana - January/February 2009 - Ask an Expert Outdoor Indiana - January/February 2009 - Ask an Expert


Ash tree care;
Hunter education

I have a few ash trees in my yard that appear healthy, yet I hear all sorts of things about emerald ash borer (EAB). Some say I should cut them down even though they’re healthy. What should I do?

Emerald Ash Borer damaged treeThe good news is there’s no reason to cut down healthy ash trees. They can be protected from EAB with proper pesticide use.

Consider your location. Are you within 30 miles of a known EAB infestation or do you live near a high-risk area for EAB? If so, you should begin using a pesticide preventive to protect your ash trees.

If your ash trees are less than 20 inches in diameter at chest height and in good shape, you can purchase an over-the-counter soil drench to apply in April each year (Bayer Advanced TM Tree & Shrub Insect Control is one example).

Soil drench products should be mixed with water according to package directions and poured at the base of the tree.  If your trees are more than 20 inches in diameter, you’ll need to contact a tree-care professional to inject the product directly into the tree. Visit and select “EAB Management for Professionals” for information on pesticides for EAB.

If you live more than 30 miles from a known infestation, concentrate on keeping your ash trees healthy. This means protecting trees from drought, environmental hazards such as road salt and soil compression, and any other conditions that would weaken the tree.  You will not be able to protect an unhealthy ash tree with pesticides because an unhealthy tree’s circulation of nutrients and water is usually impaired. This means it will not be able to properly distribute the pesticide throughout.
If you own a large number of ash trees, it may not be economically feasible to protect all of them. In this case, choose the best ones to protect and consider removing some of the less important trees now.  Even if EAB is not near, it makes good sense to replant with a diverse assortment of trees and allow them time to grow before EAB arrives.

How do I know if I need to take a hunter education class to hunt in Indiana? Where and when I can take the class?

The DNR Division of Law Enforcement suggests that every hunter take a hunter education class, but excluding the apprentice license program, it’s mandatory that Hoosiers born after Dec. 31, 1986, successfully complete a hunter education course before purchasing a license to hunt in Indiana. Individuals born after that date who do not reside in Indiana and want to hunt within state lines must have taken a course in another state or Canada.

Class dates, times and locations may be found at by clicking on the education link or calling (317) 232-4010.                        

Emerald ash borer larvae form flat and wide S-shaped tunnels as they feed under the bark.

To submit a question, write Outdoor Indiana, Ask an Expert, 402 W. Washington St., Room W255B, Indianapolis, IN 46204 or e-mail