Evaluation of Bio-rational Insecticides against Spodoptera frugiperda (J.E. Smith (Lepidoptera: Noctuidae) in Maize

Author: Rajasekhar Naram*, Durga Prasad N.V.V.S., Chiranjeevi Ch and Srinivasa Rao V.

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Abstract

The fall armyworm, Spodoptera frugiperda is the potential insect pest of maize, causes a severe damage on the vegetative and reproductive stages of that plant. Insecticides are the common practices to manage the broad categories of the pest in a maize field. Further, these practices have been linked to farmers health, biodiversity loss and declining of predatory arthropods. However, pest management by adopting bio-rational insecticides for pest management is one potential option to reduce the pesticide in maize fields. Present study on evaluation of bio-rational insecticides against S. frugiperda in maize experiment was carried out in Regional agricultural research station, Lam, Guntur, during kharif, 2019-20 and 2020-21. Among different insecticides used lowest per cent of leaf damage was observed in spinosad 45% SC 0.32 ml/L treated plot by 21.50 per cent and which is statistically on par with emamectin benzoate 5% SG 0.5 g/L (23.39%) and novaluron 10% EC 1 ml/L (28.79%). Remaining t

Keywords

S. frugiperda, spinosad 45% SC, emamectin benzoate 5%, novaluron 10% EC, azadiractin 1500 ppm, NSKE 5%, B. thuringiensis and N. rileyi.

Conclusion

It can be deduced from the present investigation, that application of spinosad 45% SC, emamectin benzoate 5% SG and novaluron 10% EC were found more effective in managing the population and damage in maize which also reflected on yield.

References

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How to cite this article

Rajasekhar Naram, Durga Prasad N.V.V.S., Chiranjeevi Ch and Srinivasa Rao V. (2022). Evaluation of Bio-rational Insecticides Against Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Maize. Biological Forum – An International Journal, 14(1)