Resumen

In the current study, insecticidal activity of essential oil from fruits of Juniperus communis L. subsp. hemisphaerica (Presl) Nyman was evaluated against Rhyzopertha dominica (F.) and Tribolium castaneum (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 á−pinene (59.70%), and limonene (9.66%). Insecticidal activity was varying with essential oil concentration and exposure time. Results showed that R. dominica is more susceptible than T. castaneum for all exposure times. LC₅₀ values at 24 h were estimated 36.96 ìl/l air for R. dominica, and 107.96 ìl/l air for T. castaneum. These results suggested that J. communis subsp. hemisphaerica fruit oil may have potential as a control agent against R. dominica, and T. castaneum.

Palabras clave: Juniperus communis subsp. hemisphaerica essential oil fumigation stored product beetle.

2018-10-24   |   128 visitas   |   Evalua este artículo 0 valoraciones

Vol. 6 Núm.1. Enero 2014 Pags. 87-93 Ecologia Balkanica 2014; 6(1)