Blahutiak, A. 1973a [Results of a study of parasitization of Parthenolecanium corni Bouché (Homoptera, Coccidae).]. Entomologicke Problemy 11: 157-193.

Notes: This laboratory study investigates the parasite Blastothrix confusa on plum scale. The study focuses on population densities of the scale insect and the parasite.