Studies on the Inheritance of Resistance to Cotton Worm Prodenia litura (Fabricius) Transfer characteristics of cadmium in soilvegetableinsect food chain. DEVELOPMENT OF A NPV COMPOUND BIOCONTROL AGENT A PRELIMINARY STUDY ON THE RESISTANCE MECHANISM OF SOYBEAN VARIETIES TO COTTON LEAFWORM PRODENIA LITVRA (FABRICIUS) A PRELIMINARY STUDY ON THE MICROSPORIDIUM NOSEMA LITURAE