Insecticidal Activity of Essential Oil from [i]Juniperus communis[/i] L. [i]subsp. hemisphaerica [/i](Presl) Nyman against Two Stored Product Beetles
Journal Title: Ecologia Balkanica - Year 2014, Vol 6, Issue 1
Abstract
In the current study, insecticidal activity of essential oil from fruits of [i]Juniperus communis[/i] L. [i]subsp. hemisphaerica[/i] (Presl) Nyman was evaluated against [i]Rhyzopertha dominica[/i] (F.) and [i]Tribolium castaneum[/i] (Herbst) by fumigation at 24, 48, and 72 h exposure times. Dry fruits were subjected to hydrodistillation using a Clevenger-type apparatus and the chemical composition of the volatile oil studied by gas chromatography-mass spectrometry (GC-MS). The major components were identified α−pinene (59.70%), and limonene (9.66%). Insecticidal activity was varying with essential oil concentration and exposure time. Results showed that [i]R. dominica[/i] is more susceptible than [i]T. castaneum[/i] for all exposure times. LC50 values at 24 h were estimated 36.96 μl/l air for R. dominica, and 107.96 μl/l air for T. castaneum. These results suggested that [i]J. communis subsp. hemisphaerica [/i]fruit oil may have potential as a control agent against [i]R. dominica[/i], and [i]T. castaneum.[/i]
Authors and Affiliations
Seyed Mehdi Hashemi, Ali Rostaefar
Keywords
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