Welcome to the Ohio Department of Agriculture

Skip Navigation

Please Note: You are viewing the non-styled version of the Ohio Department of Agriculture site. Either your browser does not support Cascading Style Sheets (CSS) or it is disabled. We suggest upgrading your browser to the latest version of your favorite Internet browser.


Ohio Department of Agriculture Emerald Ash Borer Program

Ohio's Response

Following recent confirmations of emerald ash borer in Wayne National Forest, and taking into account the infestations in surrounding states, the Ohio Department of Agriculture today expanded the state's emerald ash borer quarantine to include all 88 counties

The quarantine stipulates that ash materials and hardwood firewood cannot be taken from a quarantined area into a non-quarantined area. Despite the fact that quarantining the whole state will allow for ease of movement of ash materials and hardwood firewood, it is recommended that Ohioans continue to exercise caution when moving these materials.

"Limiting firewood movement helps the state protect against the artificial spread of many pests in addition to emerald ash borer, including gypsy moth and Asian longhorned beetle," said Ohio Agriculture Director Robert Boggs. "The department strongly urges Ohioans to continue buying firewood locally."

The federal quarantine, enforced by the U.S. Department of Agriculture, remains in effect. This quarantine makes it illegal to transport ash trees, parts of ash trees and all hardwood firewood out of the state of Ohio.

Ash trees infested with emerald ash borer typically die within five years. The pest belongs to a group of metallic wood-boring beetles. Adults are dark green, one-half inch in length, one-eighth inch wide and fly from early May until September. Larvae spend the rest of the year beneath the bark of ash trees and leave D-shaped holes in the bark about one-eighth inch wide when they emerge as adults.

Education to Battle the Pest

To help protect the state's and the nation's valued landscapes and hardwood forests, the state is encouraging citizens to join in the beetle battle by:

  • Monitoring ash trees for the signs and symptoms of EAB. Citizens should look for typical stressed tree signs; small, distinct D-shaped holes; S-shaped tunneling beneath the bark; and unusual woodpecker activity on ash trees. Citizens can report signs to the department at 1-888-OHIO-EAB.
  • Buying local firewood and burning local firewood. It only takes one piece of infested ash firewood to kill thousands of trees. Citizens should be familiar with the quarantine, abide by the quarantine, and not move firewood. For the latest quarantine map, click here.
  • Spreading the word, not the bug. Educational materials and local experts are available to help educate local communities, industries, and citizens. For more information on what expert to contact on different topics, click here.