The viva-voce examination on the Ph.D thesis entitled ECO-FRIENDLY MANAGEMENT OF APHID WITH BITANICAL PESTICIDES IN EXPERIMENTAL BEAN FIELD AT RAJSHAHI, BANGLADESH was defended by Jesmin Ara Khatun held on January 18, 2024 at 02:45 pm at the office of Director, Institute of Environmental Science, University of Rajshahi, Rajshahi-6206, Bangladesh.