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Studies on the Efficacy of Various Insecticides Against Mustard Aphid [Lipaphis erysimi (Kalt)]
Authors:J C Gupta
Institution:Haryana Agricultural University , Hissar , Haryana , India
Abstract:Abstract

An experiment was designed to test the efficacy of various insecticides for the control of mustard aphid (Lipaphis erysimi (Kalt)) on mustard (Brassica juncea), variety RL 18 at the Research Farm of the Haryana Agricultural University, Hissar (India). Out of the 13 insecticides tried, each at two levels, it was found that methyldemeton 250 ml and menazon 250 g a.i. gave the maximum control of mustard aphid. Maximum yield of 1111 kg/ha was obtained with methyldemeton 250 ml (a.i./ha) against 360 kg/ha of the control.
Keywords:Cocoa  Kocide 101  rehabilitation  Kokotine  Phytophthora
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