Antifeedant Activity of Quercetin Isolated from the Stem Bark of Bobgunnia madagascariensis (Desv.) J.H.Kirkbr & Wiersema. (Caesalpiniaceae)

The solvent extracted portions of the leaves, stem and root bark of the plant Bobgunnia madagascariensis were evaluated for antifeedant activity against the confused flour beetle of maize, Tribolium casteneum, Hbst; a storage pest of maize and its products. The compound, 3ʹ, 4ʹ, 5, 7-tetrahydroxy flavonol (Quercetin), a flavonoid isolated from the chloroform extract of the stem bark of B. madagascariensis was also evaluated for antifeedant activity against the confused flour beetle of maize, T. casteneum Hbst. using the wafer disc choice bioassay with over 50% feeding deterrent activity observed.A comparative study was also carried out using a known botanical, azadirachtin as a control