This pest sucks the sap by remaining in leaf whorl, on leaves and on tussles of the plants. As a result, pollen production is hampered. Plants become weaken and turn yellowing under higher incidence. Sprinkle the ash at the onset of infestation. Under higher incidence, spray thiamethoxam 12.6% + lambdacyhalothrin 9.5% ZC @ 2.5 ml per 10 lit of water.