Abstract

                                An experiment was conducted to study the predation potential of Coccinella septempunctata var divaricata on mustard aphid during February-March, 1996. The larva of the predatory Coccinellid consumed 116.61 aphids per individual with minimum and maximum of 155.5 and 167.71 aphids per individual in February while 141 aphids per individual with minimum and maximum of 114.25 and 168.75 aphids per individual in March. Adult of the Coccinellid consumed 518.0 aphids per individual with minimum and maximum of 428 and 636 aphids per individual in March.An experiment was conducted to study the predation potential of Coccinella septempunctata var divaricata on mustard aphid during February-March, 1996. The larva of the predatory Coccinellid consumed 116.61 aphids per individual with minimum and maximum of 155.5 and 167.71 aphids per individual in February while 141 aphids per individual with minimum and maximum of 114.25 and 168.75 aphids per individual in March. Adult of the Coccinellid consumed 518.0 aphids per individual with minimum and maximum of 428 and 636 aphids per individual in March.

Key words : C. septempunctata var. divaricata, Mustard aphid, Mustard