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Plants 2018, 7(2), 44;

Biological Activity of the Salvia officinalis L. (Lamiaceae) Essential Oil on Varroa destructor Infested Honeybees

Laboratory of Soft technology, Valorization, Physical-chemistry of biological materials and Biodiversity, Department of Agronomy, Faculty of Sciences, Université M’hamed Bougara, Boumerdes, Avenue de l’indépendance, Boumerdes 35000, Algeria
Laboratory of Aromatic and Medicinal Plants, Biotechnology Department, Faculty of Nature Sciences and Life, University of Blida, Blida 09000, Algeria
Laboratoire de Technologie Alimentaire, Faculté des Sciences de l’ingénieur, Université M’Hamed Bougara, Avenue de L’indépendance, Boumerdès 35000, Algérie
Laboratoire Valorisation et Conservation des Ressources Biologiques, Department of Agronomy, Faculty of Sciences, Université M’hamed Bougara, Boumerdes 35000, Algeria
Author to whom correspondence should be addressed.
Received: 1 May 2018 / Revised: 4 June 2018 / Accepted: 5 June 2018 / Published: 6 June 2018
(This article belongs to the Special Issue Lamiaceae Species: Biology, Ecology and Practical Uses)
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The present work is conducted as part of the development and the valorization of bioactive natural substances from Algerian medicinal and aromatic spontaneous plants, a clean alternative method in biological control. For this purpose, the bio-acaricidal activity of Salvia officinalis (sage)essential oil (EO)was evaluated against the Varroa destructor, a major threat to the honey bee Apis mellifera ssp. intermissa. The aerial parts of S. officinalis L., 1753 were collected from the Chrea mountainous area in Northern Algeria. They were subjected to hydro distillation by a Clevenger apparatus type to obtain the EO, and screened for bio-acaricidal activity against Varroa destructor by the method of strips impregnated with the mixture EO and twin according to three doses. Pre-treatment results revealed infestation rates in the experimental site ranging from 3.76% to 21.22%. This showed the heterogeneity of infestations in hives according to the density of bees. This constituted a difficulty in monitoring the population dynamics of this parasite. After treatment, a difference in the acaricidal effect of Sage essential oil is noticed. It gives a mortality rate of 6.09% by the dose D1: 5%, 2.32% by the dose D2: 15%, and a low mortality rate of 0.9% by the dose D3: 20%. The chemical treatment carried out by Bayvarol gives a result close to that of the essential oil of Sage (9.97%).These results point to the fact that Sage essential oil treatments have a significant effect and good biological activity with regard to harmful species. View Full-Text
Keywords: Apis mellifera intermissa; bio-acaricide; Algeria Apis mellifera intermissa; bio-acaricide; Algeria

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Bendifallah, L.; Belguendouz, R.; Hamoudi, L.; Arab, K. Biological Activity of the Salvia officinalis L. (Lamiaceae) Essential Oil on Varroa destructor Infested Honeybees. Plants 2018, 7, 44.

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