author(s)
Jyotish Kumar Sahu, Yogeshwar Prasad Sahu, Anosh Graham and Soham Sahoo

abstract
The effective of two insecticides viz. chlorpyrifas and imidacloprid against mustard aphid. The mustard plants were sprayed with the insecticides at 75 and 110 days after sowing. The mortality of mustard aphid was assessed at after first and second spraying of insecticides chlorpyrifas showed the most effectiveness insecticides among the causing the highest mortality of mustard aphid followed by imidacloprid.