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Investigations were carried out to evaluate the “Influence of certain plant products on the insect pollinators of coriander” at Rajasthan College of Agriculture, Udaipur, during rabi 2008-09. The treatments comprised: Pongamia glabra Vent (seed oil – 1 %), Azadirachta indica A. Juss (seed kernel extract - 5%), formulated neem product (Achook - 0.8%), Azadirachta indica (seed oil - 1%), Azadirachta indica (leaf extract - 10%) replicated 4 times. Reduction in pollinator population was estimated one day after application of the botanicals; whereas, 3 and 5 days after the treatment the mean percentage increase or decrease in the pollinator abundance over control was computed. The plant origin insecticides evinced a decrease in pollinator intensity ranging from (-) 14.52 to (-) 25.06 per cent. The maximum reduction of insect pollinators (25.06%) was recorded from plots treated with neem seed oil (1%). Three days after the treatment the percentage of visiting insect pollinators did not change in plots treated with karanj oil (1%), but the pollinator percentage increased in plots treated with NSKE (5%) and neem leaf extract (10%). Most of the botanical treatments did not have any side-effect 5 days after the treatment; however, plots treated with seed oil (1%) of Azadirachta indica A. Juss continued to show a deterrent effect and the pollinator intensity decreased by 21.57 per cent.
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