Carman, G.E. 1948 Provisionary suggestions for the use of DDT to control red scale on citrus.. News Letter (University of California, Citrus Experiment Station) No. 36: 1-8.

Notes: Instructions are given for preparing chemical insecticides against Aonidiella aurantii as well as Coccus pseudomagnoliarum, Lepidosaphes beckii and Saissetia oleae. The affect on Icerya purchasi is also mentioned.