author(s)
A Deuri, A Rahman, J Gogoi, P Borah and M Bathari

abstract
Pollinator diversity and effect of Apis cerana F. pollination on yield of Mango (Mangifera indica L.) was studied at Assam Agricultural University, Jorhat during the year 2014-15 and 2015-16 from mid of February to August. The diversity of insect forager on Mango (Mangifera indica L.) was recorded and all total 11 (eleven) insect foragers were documented. Out of which, Apis cerana was found to be the most dominant forager (46.66%) followed by A. mellifera (08.00%), A. florea (07.00%), Vespa magnifica (8.00%), Coccinella septempunctata (05.00%), Oecophylla smaragdina (03.33%), Pieris rapae (02.66%) and Papilio demoleus (01.33%). The peak period of foraging activity on mango flower was found to be 0900-1000 hours. Fruit setting was more in the Apis cerana treated plots (42.29%) compared to that of open pollination (OP, 33.36%) and pollinator exclusion (PE, 31.03%). Maximum yield was recorded in Apis cerana treated plots (84.75q/ha) and lowest in PE (58.18q/ha). Foraging activity of honey bees had also been correlated with meteorological factors. The number of Apis cerana visited on mango flower showed a positive significant relationship with temperature and bright sunshine hours and negative with relative humidity and rainfall.