Journal ID : AMA-31-10-2022-11775
[This article belongs to Volume - 53, Issue - 11]
Total View : 440

Title : Contact toxicity and the effect on progeny of Ocimum basilicum and Jasminum grandiflorum essential oils against Rhyzopertha dominica and Tribolium castaneum.

Abstract :

Current study undertaken to find out the insecticidal properties of essential oils extracted from two local plants namely Jasmine Jasminum grandiflorum (Fam. Oleaceae) and Basil Ocimum basilicum Var, (Fam. Lamiaceae) against two of major stored insects (Tribolium castaneum, and Rhyzopertha dominica). Results showed that for T. castaneum basil absolute had the strongest contact effect at all exposure periods of exposure with LC50 of (2690.0, 2270.0 and 1735.0 mg/kg) after 24, 48 and 120 h of exposure, respectively. Also showed that all tested essential oils had an effect on adults of R. dominica. However, basil absolute had the strongest effect with LC50 of (489.8 and 842.7 mg/kg) after 48 and 24 h of exposure, respectively. Based on LT50 values for T. castaneum basil absolute had the strongest effect with LT50 of 0.34 h, However for R. dominica all tested essential oils had an effect and with the highest concentration (5000 mg/kg) basil absolute had the strongest effect with LT50 of 6.60 h. The results show that all tested essential oils had an inhibition effect on T. castaneum at all concentrations. With the highest concentration (7500 mg/kg) basil oil had the strongest effect with 100% reduction. The results show that all tested essential oils had the same inhibition effect on R. dominica at all concentrations with 100% reduction.

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