1. Allaway, G. P.: Infectivity of some occluded insect viruses. Ph. D. Thesis, University of London, 1982.
2. Bathon, H., Gröner, A.: Comparison of various methods of disinfecting the eggs of the cabbage moth [Mamestra brassicae (L.) (Lep: Noctuidae)]. Z. Angew. Entomol.84, 305?310 (1977).
3. Burgerjon, A., Biache, G., Chaufaux, J.: Recherches sur la spécificité de trois virus à polyèdres nucléaires vis-à-vis deMamestra brassicae, Scotia segetum, Trichoplusia ni etSpodoptera exigua. Entomophaga20, 153?160 (1975).
4. Cayrol, R. A.: Famille des Noctuidae. In:Balachowsky, A. S. (ed.), Entomologie appliquée à l'agriculture, Vol. II, 1255?1520. Paris: A. S. Masson 1972.
5. Croizier, G. J. M.: Substitution of viral types during baculovirus infections in Lepidoptera. In: Abstracts of the 11th meeting Soc. Invertebr. Pathol., Prague, Czechoslovakia, 41?42 (1978).