Biorational Management of Spodoptera frugiperda (J E Smith) on Maize

The present study on the biorational management of Spodoptera frugiperda (J E Smith) on maize was conducted in the farm of Department of Agricultural Entomology, Dr Panjabrao Deshmukh Krishi Vidyapeeth, Akola during kharif 2019-20. The experiment was laid out in randomized block design with eight treatments replicated thrice. The treatments included- Nomuraea rileyi 1x10⁸ cfu/ g @ 30 g/ 10 l, Metarhizium anisopliae 1x10⁸ cfu/ g @ 50 g/ 10 l, Beauveria bassiana 1x10⁹ cfu/ g @ 40 g/ 10 l, NSKE 5%, Bt 85% @ 20 g/ 10 l, SLNPV 1x10⁹ POB/ ml (500 LE), azadirachtin 1500 ppm @ 50 ml/ 10 l, and control (untreated). Four sprays were applied at 12 days interval. The results revealed that with fourth spray, Bt 85% @ 20 g/ 10 l was the most effective.