After determining that an infestation exists, the service shall give notice of the fact by:
(1) placing a notice in a newspaper or newspapers in the county or counties in which any infested land is located, or, if there is no newspaper in the county, placing a notice in a newspaper or newspapers with general circulation in the county or counties in which any infested land is located, stating its findings and setting a time and place for a hearing on the need for the control of the pest, to be held not less than 10 days from the date of the notice;
(2) mailing copies of the notice to owners of forest land known to the service to have holdings in the affected area; and
(3) arranging for publicity on the subject by all news media serving the affected area.