KUBERAPPA, G. C.SOWMYA, K. S.2017-07-122017-07-122008-06-10Th-9074http://krishikosh.egranth.ac.in/handle/1/5810025111Insect pollinators activity was observed on seven selected medicinal crops viz., malbar nut tree (adusoge), garden rue (naagadaali), bitter wort (kaadu sevanthi), shyamakranta (vishnukanthi), stevia (madhuvantha), wild croton (kaadu haralu) and honey plant (madhu gida) during 2007 at Herbal garden, Division o f Horticulture, University of Agricultural Sciences, GKVK, Bangalore. At flowering, medicinal crops were visited by twenty five species of insects belonging to seven families of hymenoptera, two families of diptera and five families of lepidoptera. Foraging activity of honey bee species varied with the crop and time. The peak pollen and nectar foraging activity was observed between 1000 to 1400 h on all selected medicinal crops. Pollen load carried by different species of honey bees from honey plant, showed the significant variation. The maximum pollen load was carried by Apis cerena (5.15 mg), followed by A. florae (4.13 mg) and Trigona iridipennis (1.85 mg). The per cent seed set, per cent flower drop, seed length (cm) and 1000 seed weight were maximum in twelve bee visits per umbel. Impact o f different modes of pollination on qualitative and quantitative parameters in honey plant such as per cent flower drop, 100 fresh umbel weight, 100 dry umbel weight, number o f seeds per umbel, filled seeds, test weight, per cent oil content and germination were recorded significantly maximum in open pollinated plots, followed by plots caged with A. florea, A. cerena and T. iridipennis and lowest was recorded in control plots.ennullThesis