''specified place therein, of any article or class of articles likely to cause infection to any crop [or of insects generally or any class of insects]1. A notification under this section may specify any article or class of articles [or any insect or class of insects]1, either generally or in any particular manner, whether with reference to the country of origin, or the route by which imported or otherwise. A notification under section 3 shall operate as if it had been issued under section 19 of the Sea Customs Act, and the officers of customs at every port shall have the same powers in respect of any article with regard to the importation of which such a notification has been issued as they have for the time being in respect of any article the importation of which is regulated, restricted or prohibited by the law relating to sea customs, and the law for the time being in force relating to sea customs or any such article shall apply accordingly...''