Current Science

Open Access Open Access  Restricted Access Subscription Access

Sublethal Effects of Botanicals on the Growth and Development of Fall Armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)


Affiliations
1 Department of Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
2 Department of Statistics, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
3 Department of Agronomy, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
4 Department of Entomology, Michigan State University, MI 48824, United States
 

The present study aimed to ascertain the sublethal effects of azadirachtin 1 EC, anosom 1 EC, derisom 2 EC and NSKE 5% on biological parameters and nutritional indices of Spodoptera frugiperda. The longest larval and pupal lengths were observed in all the treatments involving botanicals, which also significantly decreased adult longevity, fecundity and egg hatchability. Regarding nutritional indices, larvae treated with anosom recorded the least approximate digestibility index, efficiency of conversion of digested food and efficiency of conversion of ingested food of 64.7%, 13.2% and 8.4% respectively. Additionally, botanicals increased the percentage of defective and malformed adults. Thus, our findings suggest that these botanicals restrain the pests from causing damage and impede their further generations.

Keywords

Biological Parameters, Botanicals, Nutritional Indices, Spodoptera frugiperda, Sublethal Effects.
User
Notifications
Font Size


  • Sublethal Effects of Botanicals on the Growth and Development of Fall Armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)

Abstract Views: 273  |  PDF Views: 140

Authors

J. K. Pavana
Department of Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
Sharanabasappa S. Deshmukh
Department of Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
H. B. Mallikarjuna
Department of Statistics, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
C. M. Kalleshwaraswamy
Department of Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
T. Basavaraj Naik
Department of Agronomy, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 204, India
David Mota-Sanchez
Department of Entomology, Michigan State University, MI 48824, United States

Abstract


The present study aimed to ascertain the sublethal effects of azadirachtin 1 EC, anosom 1 EC, derisom 2 EC and NSKE 5% on biological parameters and nutritional indices of Spodoptera frugiperda. The longest larval and pupal lengths were observed in all the treatments involving botanicals, which also significantly decreased adult longevity, fecundity and egg hatchability. Regarding nutritional indices, larvae treated with anosom recorded the least approximate digestibility index, efficiency of conversion of digested food and efficiency of conversion of ingested food of 64.7%, 13.2% and 8.4% respectively. Additionally, botanicals increased the percentage of defective and malformed adults. Thus, our findings suggest that these botanicals restrain the pests from causing damage and impede their further generations.

Keywords


Biological Parameters, Botanicals, Nutritional Indices, Spodoptera frugiperda, Sublethal Effects.

References





DOI: https://doi.org/10.18520/cs%2Fv125%2Fi1%2F52-58