The national Animal and Plant Health Inspection Service (APHIS) has issued a quarantine on hardwood entering the United States from Canada to prevent entry of certain invasive pests from Canada to the United States. This quarantine requires that all hardwood (non-coniferous) from Canada must be heat treated to 71.1 degrees Centigrade for 75 minutes. This action was taken to address concerns regarding the movement of firewood from Canada into the U.S. which is a main source of introduction and dissemination of many invasive insects including Asian longhorned beetle, emerald ash borer, gypsy moth and Japanese beetle. While some of these species may be present in the United States, currently their distribution is limited. The quarantine has been implemented to further aid in limiting their movement into the United States. Officials at the Department of Forests, Parks and Recreation say without strong precautions, Vermonts timber industry could be harmed.