Canadian Forest Service Publications
The pine seedworm, Laspeyresia piperana (Lepidoptera: Olethreutidae), in cones of Ponderosa pine. 1967. Hedlin, A.F. Canadian Entomologist 99(3): 264-267.
Issued by: Pacific Forestry Centre
Catalog ID: 27795
Available from the Journal's Web site. †
† This site may require a fee