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. 2024 Jun;69(2):1231-1243.
doi: 10.1007/s11686-024-00801-6. Epub 2024 Apr 26.

Acaricidal Efficacy of Thirty-Five Egyptian Plants Against the Camel Tick, Hyalomma Dromedarii

Hanem F Khater  1 , Eman K A Bazh  2 , Samah Abdel Gawad  3 , Abdelfattah Selim  4 , Hanan A A Taie  5 , Ibrahim T Radwan  6 , Shawky A Moustafa  7 , Ameer A Megahed  8   9 , Mohamed M Baz  10 , Sahar A Kandeel  11
Affiliations

Acaricidal Efficacy of Thirty-Five Egyptian Plants Against the Camel Tick, Hyalomma Dromedarii

Hanem F Khater et al. Acta Parasitol. 2024 Jun.

Abstract

Purpose: Alternative and affordable tick control strategies are crucial to control and prevent tick bites and tick-borne diseases.

Methods: In this study, we evaluated the acaricidal efficacy of 35 aqueous plant extracts (17%) against the camel tick, Hyalomma dromedarii.

Results: The phytochemical profile indicated the presence of various secondary substances. Plants were classified into three groups according to their mortality percentage 15 days post-treatment with 17%. This highly effective group (91%-95%) comprised Ocimum basilicum, Mespilus germanica, and Viola alpine followed by Carum carvi, Cucurbita pepo (peel), and Peganum harmala. A moderately effective group (80%-90%) included Acacia nilotica, Apium graveolens, Capsicum annuum, Ceratonia siliqua, Cucurbita pepo (seeds), Equisetum arvense, Eruca sativa, Ginkgo biloba, Plantago psyllium, Phyllanthus emblica, Punica granatum, and Ziziphus spinachristi. The 20 remaining plants were assigned to the less effective group (< 80%). Viscum album (58.3%), which was the least effective reference plant. The high potency of six plant extracts as acaricides may be attributed to the high content of active principles, e.g., phenols, flavonoids, and tannins.

Conclusion: All of these highly effective plants are recommended for use as an acaricide, in case of facing acaricidal resistance or limited options for tick control.

Keywords: Mespilus; Ocimum; Phyllanthus; Punica; Viola; Ziziphus.

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