An Ips Interpunctus Infestation in White Spruce of Northern Interior Alaska George L. Downing Published: 1957 Total Pages: 4 Get eBook
The Chemical Ecology of the Northern Spruce Engraver, Ips Perturbatus (Eichhoff) (Coleoptera:Scolytidae), and Associated Insects in Spruce Forests of Alaska Andrew Davis Graves Published: 2007 Total Pages: 604 Get eBook
Cooperative Economic Insect Report United States. Plant Pest Control Division Published: 1956 Total Pages: 1426 Get eBook