Schuh, J., & Mote, D.C. 1948 Insect pests of nursery and ornamental trees and shrubs in Oregon.. Bulletin (Agricultural Experiment Station, Oregon State College) 449: 164 pp.

Notes: Scale insects reviewed include Xylococcus betulae, Orthezia occidentalis, Gossyparia spuria, Rhizoecus terrestris, Coccus hesperidum, Pulvinaria vitis, P. floccifera, P. camelicola, Lecanium corni, L. fletcheri, Physokermes concolor, P. taxifoliae, Dynaspidiotus britannicus, Aspidiotus hederae, Diaspidiotus (Aspidiotus) ancylus, Hemiberlesia rapax, H. degenerata, Nuculaspis californica, Quadraspidiotus (Aspidiotus) oestreaeformis, Q. (A.) juglans-regiae, Q. (A.) perniciosus, Aspidaspis arctostaphyli, A. oxycoccus, Aulacaspis rosae, Carulaspis visci, Chrysomphalus (Aonidum) ficus, Lepidosaphes ulmi, L. camelliae, Stramenaspis kelloggi, Parlatoria camelliae and Phenacaspis (Chionaspis) pinifoliae; brief field descriptions; biological notes; control recommendations; hosts.