Helmy, E.I. 1992 Evaluation of diazinon against Lepidosaphes beckii (Newm.) (Diaspididae) and Ceroplastes floridensis Comst. (Coccidae) (Coccoidea-Homoptera) infesting citrus trees in Egypt.. Egyptian Journal of Agricultural Research 70: 809-816.

Notes: Species mentioned include Lepidosaphes beckii and Ceroplastes floridensis.