Hoyt, S.C., Leeper, J.R., Brown, G.C., & Croft, B.A. 1983 Basic biology and management components for insect IPM.. Integrated Management of Insect Pests of Pome and Stone Fruits. Wiley-Interscience New York 454 pp.

Notes: The economic importance, sampling techniques and control attempts of the San Jose scale, Quadraspidiotus perniciosus, on apple, is reviewed.