Hanson, H.C. 1963 . Diseases and pests of economic plants of Vietnam, Laos and Cambodia. American Institute of Crop Ecology Washington, D.C. 155 pp.
Notes: This report reviews insects, diseases and other pests according to the crops they attack. The scales mentioned are Pseudococcus longispinus on cotton, Aonidiella aurantii, Lepidosaphes citricola, Parlatoria ziziphi, Pseudococcus adonidum and P. citri on fruit, Chionaspis theae on tea, Pseudococcus citri on coffee, Diaspis pentagona on mulberry, and Pseudococcus citri on pepper.