Yield losses in maize (Zea mays) due to fall armyworm infestation and potential IoT-based interventions for its control

Abstract

Fall Armyworm, Spodoptera frugiperda (J.E. Smith), a polyphagous insect-pest, reported from over 50 countries across Africa and Asia in just about two years. It significantly damages maize, though over 350 host species have been reported. Its control has become a priority to scientists across continents. A study was undertaken in the Rangareddy district of Telangana to determine the effect of FAW and rainfall on yield. It was found that rainfall during critical crop growth stages showed a positive correlation of 0.595 with yield. To estimate yield during kharif 2018, rainfall data of previous twenty years was analysed. Yield during 2018 without accounting for FAW damage and during 2009 was estimated at 1.88 and 1.84 tons/ha, respectively. Further, yield losses due to FAW was estimated at 33%. Use of IoT-based technologies combined with IPM strategies will aid in tackling FAW. Taking control measures at vulnerable areas rather than as a general practice is a better alternative.