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Identification of insecticidal properties in common weed - Lantana camara Linn by Gas Chromatography and Mass Spectrum (GC-MS-MS)

S. Murugesan, C. Rajeshkannan, D. Suresh Babu, R. Sumathi and P. Manivachakam

Oil extracted from the leaves of Lantana camara by hydrodistillation was processed for bioactive molecules of insecticidal action against the teak defoliator, Hyblaea puera. Oil fraction analysed by GC/MS/MS has revealed major compounds of the said nature. About thirty six compounds were characterized from essential oil of L.camara, some of them like α- Copaene, Germacrene D & B, α – Cubebene, β – Elemene, α – Guaiene, α – humulene , Aromadendrene, β – Selinene, α – Selinene, Caryophyllene oxide, Nerolidol, Spathulenol and Delta – Cadinene, have expressed tritrophic interactions as reported by earlier findings as well as insecticidal activity in terms of larval mortality against teak defoliator.