505 ILCS 90/18
Whenever the Department shall find as a fact that any plant disease or insect infestation exists in any other state, territory, district, province or country, or in any portion thereof, or in any locality therein, with respect to which the Secretary of Agriculture of the United States has not determined that a quarantine is necessary and has not established a quarantine, and that any plant or plant product or other thing, coming therefrom into this State is likely to convey such plant disease or insect infestation into this State, the Department shall report such fact to the Governor. The Governor may thereupon by proclamation, schedule such state, territory, district, province, or country, or any portion thereof, or any locality therein, and prohibit the bringing therefrom into this State of such insect pest or plant disease, or any plant or plant product or other thing of the kind infested or infected, or likely to be infested or infected, or is likely to convey infection to plants or plant products in this State, except under such regulations as may be prescribed by the Department and approved by the Governor.
Any article brought into the State in violation of any proclamation of the Governor or any regulation of the Department, issued or established in accordance with the provisions of this Act, or in violation of any Federal quarantine established by the Secretary of the United States Department of Agriculture, shall at the expense of the owner be either destroyed, returned to the consignor, or otherwise disposed of as the Department may direct.
505 ILCS 90/18