Flint, M.L., & Van den Bosch, R. 1981 . Introduction to Integrated Pest Management. Plenum Press New York 240 pp.

Notes: Scales are mentioned in two tables. In a list of species that have resisted pesticide controls Aonidiella aurantii and Quadraspidiotus perniciosus are listed. A list of apple pests include Aonidiella aurantii, A. citrina, Coccus hesperidum, C. pseudomagnoliarum and Icerya purchasi.