AUTHOR(S)
Saraswathi Saraswathi1*, Jagadisha Tavarekere Venkataravanappa2, Esther Shoba R1, Ashok Dhayalan1, Debojyoti Chatterjee1 , Jikki M Roy1, Mahima Manoharan1, Rupsa Das1, Naveen Kumar S3, and Thyloor Rama4

ABSTRACT

The highly polyphagous insect Spodoptera litura has become a serious pest in recent years,infesting a variety of crops due to the pest's extensive presence; pesticidesare constantly being used to try to control the infestation. Several botanical/plant extracts have been employed to regulator the S. liure. The current study was aimed to assess the chemicalconstituents from the methanolic extract of O.mungos and exploring the larvicidal activity of O. mungos against S. litura.Our observations indicated that the total phenolic content of O. mungos was found to be 16.22±0.115 mgGAE/g in the stems and 21.17±0.011 mg GAE/g in the leaves. The total flavonoidcontent was found to be 42.80±0.096 mg QE/g in the stems, and 28.52±0.120 mgQE/g in the leave of Ophiorrhiza mungos.Following a 24-hour exposure period, larval mortality was observed. Aconcentration of 5 mg/mL was shown to have the greatest larval death rate. TheGC-MS analysis of O. mungos leave revealed seven phytocompounds, whereas thestem sample analysis revealed ten phytocompounds, respectively. These resultsconclude that methanolic crude extracts O.mungos can be utilized as an effective pesticidal agent for managinglepidopteran pests..

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Keywords: Ophiorrhiza mungos, Spodopteralitura, Bio-pesticides, GC-MS

DOI
https://doi.org/10.57182/jbiopestic.17.2.117-129

PAGES: 117-129 | 1 VIEWS | 9 DOWNLOADS

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