1. Coprecipitation with lactose as a means of recovering the spore-crystal complex of Bacillus thuringiensis;Dulmage;J. Invertebr. Pathol,1970
2. Mass rearing of virus-free cabbage loopers on an artificial diet;Getzin;J. Insect Pathol,1962
3. A successful technique for mass rearing cabbage loopers on a semisynthetic diet;Ignoffo;Ann. Entomol. Soc. Amer,1963
4. Production and virulence of a nuclear-polyhedrosis virus from larvae of Trichoplusia ni reared on a semisynthetic diet;Ignoffo;J. Insect Pathol,1964
5. Bioassay technique and pathogenicity of a nuclear-polyhedrosis virus of the cabbage looper, Trichoplusia ni;Ignoffo;J. Insect Pathol,1964