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Insecticidal and repellent activities of Artemisia herba alba Asso, Juniperus phoenicea L and Rosmarinus officinalis L essential oils in synergized combinations against adults of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

2022; Elsevier BV; Volume: 45; Linguagem: Inglês

10.1016/j.bcab.2022.102513

1878-8181

Naima Boukraa, Segni Ladjel, Wiam Benlamoudi, Mohamed Bilal Goudjil, Mohammed Berrekbia, Amar Eddoud,

Entomological Studies and Ecology

Using essential oil (EO) mixtures to improve their single effectiveness aids to minimize insect resistance to synthetic insecticides and reduce the amounts of the applied bio-products. This study seeks to identify the chemical compositions of nine binary combinations of EOs of Artemisia herba alba Asso (A), Juniperus phoenicea L (B), and Rosmarinus officinalis L (C), by Gas Chromatography coupled to Mass Spectrometry (GC-MS) side to side with the evaluation of their toxicity and repellency effectiveness against adults of Tribolium castaneum Herbst by fumigation and repellent tests. GC-MS results revealed that each mixture was dominated by one of the following compounds: Car-3-en-5-one, α-pinene, exo-2,7,7-trimethylbicyclo[2.2.1]heptan-, and Camphor . After 24 h of treatment, the most toxic mixtures were H (3C:1A), L (1B:1C), with K (1B:3C) (LD 50 = 64.99, 68.98, and 74.76 μL/L air, respectively). After 96 h, synergistic mixtures K, I (1C:1A), and L seemed to be the most potent (LD 50 = 55.6, 57.63, and 58.46 μL/L air, respectively) throughout the period of treatment. LT 90 values at the concentration of 83.66 μL/L air did not exceed the limit of 19.20 h for the less potent blend. The most repellent mixtures were F, D, E, and H, showing RD 90 values of 1.25, 2.99, 3.46, and 3.83 nL/cm 2 , respectively. All samples showed synergistic effects, except the combinations I and G (1C:3A). The synergistic mixtures might be suitable as alternatives to chemical treatments for the control of T. castaneum , but tests at a larger scale are necessary to confirm our results. • All binary combinations of Artemisia herba alba Asso, Juniperus phoenicea L. and Rosmarinus officinalis L. essential oils had repellent and toxic effects on Tribolium castaneum Herbst adults. • For both biological activities, some mixtures were synergistic. • Thechemical compositions of all essential oilblends changed significantly comparing with the crude extracts.