(a) Logs, pulpwood, branches, twigs, plants, scion and other propagative material of the Larix or Pseudolarix spp. except seeds;

(b) Any other product, article, or means of conveyance, of any character whatsoever, not covered by paragraph (a) of this section, when it is determined by an inspector that it presents a risk of spread of European larch canker and the person in possession thereof has actual notice that the product, article or means of conveyance is subject to the restrictions in the quarantine and regulations.