under this section (referred to in this section as a covered area ). (c) Fire, insects, and diseases In accordance with section 4(d)(1) of the Wilderness Act ( 16 U.S.C. 1133(d)(1) ), the Secretary may take any measure in a covered area that the Secretary determines to be necessary for the control of fire, insects, and diseases, subject to such terms and conditions as the Secretary determines to be appropriate. (d) Incorporation of acquired land and interests Any land or interest in land that is acquired by the United States within the boundaries of a covered area shall— (1) become part of the covered area