The preferred hosts of S. noctilio are pine (Pinus) species, especially Monterey Pine (Pinus radiata). The insect will also attack spruce (Picea), fir (Abies), and larch (Larix) species as well as Douglas fir (Pseudotsuga).
Policy directives
- D-02-12: Phytosanitary import requirements for non-processed wood and other wooden products, bamboo and bamboo products, originating from all areas other than the continental United States
- D-01-12: Phytosanitary Requirements for the Importation and Domestic Movement of Firewood
- D-98-08: Entry Requirements for Wood Packaging Material into Canada