Alford, D. V., Walters, K. F. A., Williams, I. H., Murchie, A. K., (1996). Brighton Crop Protection Conference: Pests & Diseases - 1996: Volume 2: Proceedings of an International Conference, Brighton, UK, 18-21 November 1996., 609-614. British Crop Protection Council, Farnham, UK. English language
Lerin, J., (1987). Bulletin SROP 10(4), 74-78. English language
Dmoch, J., (1975). Roczniki Nauk Rolniczych, E 5(1), 99-112. Polish language
Laborius, A., (1972). Zeitschrift fur Angewandte Entomologie 72(1), 14-31. Paul Parey, Berlin, Germany. German language