Calkins, C.O. 1983 Research on exotic insects.. Exotic Plant Pests and North American Agriculture. Academic Press New York 522 pp.
Notes: A list of foreign pests of agricultural crops now resident in the U.S. include Aonidiella aurantii, A. citrina, Icerya purchasi, Lecanium persicae, Lepidosaphes ulmi, Planococcus citri, Pseudococcus comstocki, Quadraspidiotus ostraeformis and Saissetia oleae. Icerya aegyptiaca, I. seychellarum, Rastrococcus iceryoides, R. spinosus and Unaspis yanonensis are among the foreign pests of food crops of primary concern to mainland agriculture in the U.S.