author(s)
Avinash Udikeri and Umesh Chandra

abstract
A field experiment was conducted to evaluate efficiency of different pollinators on Phalsa, Grewia subinaequalis D.C. a fruiting shrub at Faizabad (U.P) during 2015. The foraging activity started from April month. Apis dorsata found to visit more number of flowers (10.01) in a minute by spending very less time (2.27 sec) per flower. A. mellifera, Halictus sp., Polistes olivaceus and Megachile sp. found visiting 9.35, 6.27, 4.16 and 3.92 number of flowers in a minute and spent 2.82,6.55,7.89,7.31 seconds on flower respectively. A. dorsata appeared to be most efficient pollinator on Phalsa with pollination index of 85066 followed by Apis mellifera. Highest fruit setting (59.17%) was recorded in the bee pollinated plants followed by open pollinated plants under Kumarganj agro-ecological conditions.