INDIANAPOLIS Century-old ash trees at the Indiana governor's residence are being treated with an insecticide to protect them from the emerald ash borer.
The Indianapolis Star reports the Indiana Department of Administration hired a Massachusetts-based company and an Indianapolis company to treat the trees. The companies did not charge for the service.
Entomologist Phil Marshall says the destructive beetle has been detected about a mile north and west of the governor's residence.
The ash borer is native to eastern Russia and Asia. It first appeared in Michigan in 2002 and has killed millions of trees nationally, including 12,500 in Fort Wayne.
Joe Aiken of Arborjet says trees can't be saved if at least 50 percent of the tree is infested.