This book is on cabbage aphid, Lipaphis erysimi (Kaltenbach) to determine the bioefficacy of biopesticides alone and in combination with insecticide against cabbage aphid. This book having very much importance for the student and researcher of Entomologist who are working on cabbage aphid. Investigations were carried out at Instructional Farm, College of Agriculture, Junagadh Agricultural University, Junagadh during rabi, 2011-12.