1Department of Agronomy, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga577204, Karnataka, India
Department of Agricultural Entomology, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga577204, Karnataka, India
*Email: kalleshwaraswamycm@uahs.edu.in (corresponding author)
Online Published on 08 February, 2023.
The fall army worm (FAW) Spodoptera frugiperda is now spread all over India and at present, spraying insecticides is the primary method of control. Considering its presence in whorl and negative impact of insecticidal spray on the natural enemies, there is a need of evolving alternate techniques. In the present study, whorl application of insecticides mixed in river sand was evaluated for its efficacy. Sand mixed with chlorantraniliprole 18.5SC @0.4 ml/kg, emamectin benzoate 5SG@ 0.4 g/kg and spinosad 45SC @ 0.4 ml/kg sand were found to be effective, with significant reduction in leaf damage. The quantity of insecticide required/unit area was 50% less than the spray while maximum grain yield/cost benefit ratio was obtained.
Spodoptera frugiperda, Maize, Chlorantraniliprole, Emamectin benzoate, Spinosad, Sand, Whorl application, Grain yield, C: B ratio
