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  • Acaricidal activity of Origanum bilgeri P.H. Davis (Lamiaceae) essential oil and its major component, carvacrol against adults Rhipicephalus turanicus (Acari: Ixodidae).

Acaricidal activity of Origanum bilgeri P.H. Davis (Lamiaceae) essential oil and its major component, carvacrol against adults Rhipicephalus turanicus (Acari: Ixodidae).

Veterinary parasitology (2012-12-12)
Samed Koc, Emre Oz, Ilker Cinbilgel, Levent Aydin, Huseyin Cetin
ABSTRACT

The acaricidal activity of an essential oil obtained from aerial parts of Origanum bilgeri P.H. Davis (Lamiaceae), an endemic species in Turkey, and its major constituents, carvacrol was evaluated against unfed adults Rhipicephalus turanicus Pomerantzev (Acari: Ixodidae) collected from Kepez, Antalya. The composition of the essential oil was analyzed by GC/MS. The major compound identified in the oil was carvacrol (93.02%). Generally, tick mortalities to the O. bilgeri distillate and carvacrol increased with concentrations. O. bilgeri oil produced >83% mortality at 48h at a concentration of 0.8% and mortality was higher than 63% at a carvacrol concentration of 0.4%. Our results have shown that O. bilgeri essential oil and its major component, carvacrol, may have potential as acaricidal agents against R. turanicus.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Carvacrol, 98%
Sigma-Aldrich
Carvacrol, ≥98%, FCC, FG
Sigma-Aldrich
Carvacrol, natural, 99%, FG
Supelco
Carvacrol, analytical standard

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