Efficacy of Ethyl Acetate Extracts of Botanicals On Diamond Back Moth <i>Plutella xylostella</i> L.

S. Susmitha; M. Shanthi; M. Murugan; K. Senthil; M. L. Mini

doi:10.55446/IJE.2021.115

Authors

S. Susmitha Department of Agricultural Entomology, Agricultural College & Research Institute (AC&RI), Tamil Nadu Agricultural University (TNAU), Madurai 625104, Tamil Nadu
M. Shanthi Department of Agricultural Entomology, Agricultural College & Research Institute (AC&RI), Tamil Nadu Agricultural University (TNAU), Madurai 625104, Tamil Nadu
M. Murugan Department of Agricultural Entomology, TNAU, Coimbatore 641003, Tamil Nadu
K. Senthil Department of Soils and Environment, AC&RI, TNAU, Madurai 625104, Tamil Nadu
M. L. Mini Department of Biotechnology, Centre of Innovation, AC&RI, TNAU, Madurai 625104, Tamil Nadu

DOI:

https://doi.org/10.55446/IJE.2021.115

Keywords:

Plutella xylostellaSesbania grandiflora, Swietenia macrophylla, botanicals, soxhlet extraction, antifeedant, toxicity, growth inhibition, developmental period

Abstract

In the present study, ethyl acetate extracts of six botanicals were extracted by continuous hot percolation process in Soxhlet apparatus and evaluated to study the antifeedant, insecticidal and the growth and development inhibitory activity on second instar larvae of diamond back moth Plutella xylostella L. The results showed that the Sesbania grandiflora at 5% exhibited maximum antifeedant index (34.27%) followed by Swietenia macrophylla 5% (28.91%). Extracts of these plants were also found to be the most effective against larvae giving 76.67 and 23.33% mortality, respectively. The adult emergence was 23.33 and 26.67%, respectively with these, while developmental period did not reveal any significant differences.