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Frequently Asked Questions

Where did the Emerald ash borer come from?

The Emerald ash borer’s natural habitat includes: Korea, Japan, northern China and eastern Russia. It was first discovered in Michigan in 2002 and has since destroyed 20 million ash trees in that state alone, over 40 million overall.

How did it get here?

Although there isn’t a way to pinpoint the exact time or place Emerald ash borer came from, it’s highly likely it arrived on ash wood used for crating or packing heavy consumer goods from Asia.

What types of trees does the Emerald ash borer attack?

In North America, it has only been found in ash trees. But, among this type of tree, EAB is an equal opportunity killer. It will attack healthy, declining, urban, rural, small and large ash trees. The list includes: green, white, black and blue ash. Mountain ash trees are not true ash and therefore are not affected by EAB.


What type of pests does Optrol kill?

Optrol controls over 40 pests! View the complete list.

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