Two experiments were conducted with four granules and eight foliar sprays of insecticides for controlling rice stem borer and gall midge. Among the granular insecticides mephosfolan 0.75 and 0.50 kg a.i./ha applied twice at 25 and 45 days after transplanting were effective in gall midge control. Among the foliar sprays four rounds of either phosphamidon 0.50 kg or endosulfan 0.25 kg a.i./ha con- trolled the rice stem borer effectively.
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Tamil Nadu Agricultural University
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