Larvicidal activity and GC-MS detection of bioactive compunds in alkaloid and terpenoid extract of flowers of Chrysanthemum cinerariaefolium against Culex quinquefaciatus

The bioactive compounds of alkaloid and terpenoid of flowers of (pyrethrum) Chrysanthemum cinerariaefolium have been investigated and evaluated using GC-MS analysis. (Perkin Elmer GC clarus 500) Gas Chromatography - Mass Spectrometry, The mass spectra of bioactive compounds were matched according to National Institute of Standards and Technology (NIST) library. The alkaloid extract contained 60 compounds, while the terpenoid extract has 41 compounds. The bioassay of these two extract were tested against all larval instar of Cx. quinquefaciatus and showed that the first larval instar was more sensitive than other preceding instars and the mortality percentages of these larval instars were higher in alkaloid extract of flowers

Keywords:

Chrysanthemum cinerariaefolium , Culex quinquefaciatus , terpenoid , Alkaloid , GC-MC , Larvicidal , Iraq