Yasumatsu, K. 1969 Biological control of citrus pests in Japan.. Proceedings First International Citrus Symposium. Vol. 2. University of California Riverside
Notes: [Conference held at the University of California, Riverside, March 16-26, 1968.] Species mentioned as citrus pests in Japan include Ceroplastes japonicus, C. pseudoceriferus, C. rubens, Icerya purchasi, Pulvinaria aurantii and Unaspis yanonensis.