author(s)
Rabiul Islam, Md. Ariful Islam, Krisna Chandra Saha, Hosna Kohinoor, Nazneen Ara Sultana and Saleh Adnan

abstract
The study was carried out at the Oilseed Research Centre of the Bangladesh Agricultural Research Institute, Gazipur, to monitor the foraging behaviour of native honeybee Apis dorsata in order to improve pollination of Brassica napus variety BARI Sarisha 8. A. dorsata was shown to have a greater foraging rate (18.91 flowers/minute) in the study. A. dorsata on B. napus was shown to have a faster foraging speed (bee time/flower, 2.91 seconds). The hours of 10.00 h to 12.00 h were found to be the peak foraging times. The present study aims to support the management of a sustainable and economically viable seed production programme for B. napus.