Abstract
ABSTRACT In order to develop a strategy for the safe management of insect pests in stored agricultural commodities, Anserine (Chenopodium ambrosioïdes (L.)) essential oil was tested against Cowpea weevil (Callosobruchus maculatus) raised on seeds of Chickpea (Cicer arietinum) at 20–30°C and 65 ± 5% relative humidity in storage conditions. The essential oil extracted from Chenopodium ambrosioïdes (L.) was analysed by gas chromatography coupled with mass spectrometry (GC/MS). The chromatogram of the essential oil of Chenopodium ambrosioïdes (L.) contains 13 compounds of which α-Terpinene is the majority constituent with a percentage of 61.04%. The results obtained have shown that the essential oil of Chenopodium ambrosioïdes (L.) has repellent and toxic effects on Callosobruchus maculatus. It causes a high mortality rate in adults and affects its fecundity, fertility and success rate in a very significant way compared to controls.
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