Journal of FARM SCIENCES, Vol 11, No 3 (1998)

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Loss Estimation and Development of Spray Schedule in Bengal gram due to Podborer

A.P. Biradar, R.A. Balikai, R.G. Teggelli

Abstract


Field trails were conducted for two consecutive seasons during rabi 1995-96 and 1996-97 , to develop a spary schedule in chickpea against the pod borer, Helicoverpa armigera (Hubner).The results indicated that the treatment that received five sprays during both vegetative and reproductive phases i.e. at 15, 30, 45, 60 and 75 days after sowing recorded least pod borer incidnece (18.7%) by producing higher seed yield of 11.5 q/ha with 125.5% increase over untreated check and thus avoiding the loss upto 55.7%. The next best treatment was with three sprays given at reproductive phase (i.e. at 45, 60 and 75 days after sowing) with 21.5% pod borer incidence, 9.5 q/ha of seed yield and 86.3% increase over the untreated check by avoiding the loss upto 46.3%.

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