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In vegetables and flower crops, greenhouse whitefly, Trialeurodes vaporariorum (Westwood) is an important pest which damages the crop drastically. Development of alternative methods for the management of agriculturally important pests is needed due to the adverse effect of pesticides to human health and environment. The main objective of the present study is to test the efficacy of yellow sticky traps and yellow charts coated with castor oil by which manages the pest effectively. The number of whitefly adults attracted towards yellow sticky trap was compared with conventional method ie, tieing of yellow charts coated with castor oil. The experimental results revealed that irrespective of the varieties, yellow chart coated with castor oil caught whiteflies more than the yellow sticky trap. Marginal benefit cost ratio (MBCR) was also higher in the treatment of yellow charts coated with castor oil whereas MBCR of yellow sticky traps was only 0.88.
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