Ledieu, M.S., Helyer, N.L., & Derbyshire, D.M. 1989 Pests and diseases of protected crops.. Pest and Disease Control Handbook. The British Crop Protection Council/Blackwell Science Surrey, England 732 pp.

Notes: Parthenolecanium corni, Planococcus adonidum and P. citri are among the species discussed in this chapter.