Studies on the bionomics and eco-safe management of major insect pests of mustard were carried out at Rajasthan College of Agriculture, MPUAT, Udaipur during rabi 2004-05 and 2005-06. The appearance of mustard aphid (Lipaphis erysimi Kalt.) was observed in the second week of December (50th SMW) reaching to a peak of 196.23 aphids per 10 cm twig length per plant in ...