Pigeon pea Cajanus cajan (L.) Millsp.] is commonly known as arhar or red gram or tur. It has been cultivated in India for more than 3000 years. It account low productivity in India. Among various constraints for low productivity, infestation and loss due to insect pests is also one of the main contributory factors. Nearly 300 species of insect pests are known to infest pigeon pea at various growth stages in India (Lal, 1998). Increasing consciousness about conservation of environment as well as health hazards associated with agrochemicals and consumer's preference to safe and hazard-free...