Crude Volatile Oil Derived from Sphaeranthus Indicus Linn (Asteraceae) Comparative Insecticidal Activity Against Agriculture Pests Spodoptera Litura and Plutella Xylostella

Abstract

The goal of this work is to compare the Larvicidal activity of plant-derived essentialoils against Spodoptera litura and Plutella xylostella and eliminate the chemical burden in managing agricultural pests. Pest rearing, homology modelling, and molecular docking are among of the approaches used in this study. The G Power value is set at 0.8, with two sets of five sample sizes each. At 500 ppm, the death rate was highest in all instars: 93.1% (II instar), 85.2% (III instar), and 81.2% (IV instar). The death rate was lower at the lowest dose of 100 ppm across all larval instars. Both pests’ second instar larvae were more vulnerable at 500 ppm and was considerably different from other treatment dosages. On third instar larvae, the fatal values (LC50 and LC90) were 213.17 and 421.88 ppm, respectively. When compared to other chemical compounds, essential oil extracted from Sphaeranthus indicus Linn (Asteraceae) has effective insecticidal action against agricultural pests Spodoptera litura and Plutella xylostella.

Keywords

• sphaeranthus indicus
• spodoptera litura
• plutella xylostella
• pest
• mortality
• novel essential oils
• protein
• docking