TY  - BOOK
AU  - Layaoen, Thelma Z. 
TI  - Microbial control of earworm, Helicoverpa armigera (Hubner) using beauveria bassiana (Bals.) Vuill and Bacillus Thuringiensis Sub Sp. Thuringiensis Berliner 
PY  - 1979///
N1  - Thesis (MS Entomology) -- University of the Philippines, Los Baños, Laguna; Bibliography: leaves 87-96
ER  -