The board of supervisors of any county may authorize the commissioner to contract with any state or federal agency, public corporation for municipal purposes, or person that owns, controls, or administers within the county any property or premises which are infected or infested with any pest, to eradicate, destroy, or control it on such property or premises. The contract shall not impose any cost or obligation on the county, unless the imposition of the cost or obligation upon the county is authorized by the board of supervisors.