TY - BOOK AU - AJITH P P AU - Dr. G MADHAVAN NAIR TI - BIOLOGY AND POPULATION BUILD UP OF THE RICE WHITEBACKED PLANTHOPPER, Sogatella furcifera (Horvath) ON DIFFERENT RICE VARIETIES U1 - K86 N90 AJ 78 PY - 1990/// CY - COLLEGE OF AGRICULTURE VELLAYANI PB - DEPARTMENT OF AGRICULTURAL ENTOMOLOGY ER -