Concerns over a destructive beetle that targets ash trees has promoted the state of New Hampshire to extend a firewood quarantine to Rockingham and Hillsborough counties.
Merrimack County has been under quarantine for the emerald ash borer, which was first found in the state last year. Researchers have found it in Rockingham and Hillsborough counties.
The Concord Monitor reports federal regulations require the state to quarantine the county where the ash borer was found to prevent the spread to other parts of the state.
Eric Johnson, program coordinator at the new Hampshire Timberland Owners Association, says the ash borer's presence in the state hasn't had a huge impact on firewood sales.