title: Combination of gamma radiation and essential oils from medicinal plants in managing Tribolium castaneum contamination of stored products.
abstract: Effectiveness of management of insect infestation of stored products with essential oils as viable alternatives to synthetic insecticides can be enhanced with gamma radiation. We studied effects of sublethal doses of essential oils from Rosmarinus officinalis (L.) and Perovskia atriplicifolia (Benth) (safe natural insecticides) in combination with gamma radiation on mortality of adults of Tribolium castaneum (Herbst). The insects were subjected to two radiation doses and two concentrations of the essential oils in the air. This combined treatment increased the mortality, which was also 3-6 times higher than could be expected from the sum of the effects of each of the treatments. The synergistic effect was more pronounced in the case of R. officinalis (L.) than in the case of P. atriplicifolia (Benth). The experiments have shown that the known insecticidal effectiveness of the essential oils can be enhanced by preliminary irradiation. Possible approaches to implementation of the combined treatment are discussed.
authors: Agricultural, Medical and Industrial Research School, Nuclear Science and Technology Research Institute, PO Box 31485-498, Karaj, Iran. mahmadi@nrcam.org
authors: Mehrdad
authors: M
authors: Ahmadi
authors: Adly Mohamed M
authors: AM
authors: Abd-alla
authors: Saeid
authors: S
authors: Moharramipour
mesh_terms: D000818:Animals; D004203:Disinfection / Q000379:methods*; D004305:Dose-Response Relationship, Drug; D004307:Dose-Response Relationship, Radiation; D061353:Food Storage / Q000379:methods; D005720:Gamma Rays; D009822:Oils, Volatile / Q000008:administration & dosage*; D010938:Plant Oils / Q000008:administration & dosage*; D010946:Plants, Medicinal / Q000737:chemistry*; D011836:Radiation Tolerance / Q000187:drug effects; D015996:Survival Rate; D014231:Tribolium / Q000187:drug effects* / Q000502:physiology / Q000528:radiation effects*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils