Chang, K.C., & Huang, L.L. 1963 [A preliminary study on the control of cottony cushion scale by Australian ladybeetle.]. Acta Entomologica Sinica 12(5/6): 688-700.
Notes: The Australian ladybeetle (Rodolia cardinalis), a predator of the cottony cushion scale, was introduced to South China from the Soviet Union in the year 1955. This study discusses the success of this predator in controlling the scale, and its tolerance to some insecticides.