Browsing by Author "Cinbilgel I."

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    Fumigant toxicity of Satureja cuneifolia and Ziziphora clinopodioides essential oils on field collected sand flies (Diptera: Psychodidae: Phlebotomie)
    (Parlar Scientific Publications, 2018) Cetin H.; Ser O.; Arserim S.K.; Polnt Y.; Ozbek T.; Civil M.; Cinbilgel I.; Ozbel Y.
    Sand flies (Diptera: Psychodidae: Phlebotominae) are the vectors of Leishmania species. Since the larval control of the sand flies is very difficult and almost impossible, the fighting has mainly been carried out for the adults. In this research the fumigant toxicity of two plant essential oils obtained from Satureja cuneifolia Ten. and Ziziphora clinopodioides Lam. was evaluated against fieldcollected adult Phlebotomus sand flies under laboratory conditions. The fumigant activity was tested by exposing the sand flies to essential oil vapors at 10, 20, 50 and 100 μL/L air concentrations. Knock time 50 (KT50) values and the 95% confidence limits were calculated by using a probit analysis program. A decrease in the KT50 value is observed in S. cuneifolia and Z. clinopodioides essential oils in a concentration dependent manner. KT50 values at the highest concentration (100 μL/L air) are 9,3 and 11,6 min, respectively. After a 1 h exposure period, both test oils produced 100% mortality at all the concentrations tested. The results of the research suggest that essential oils from these two plants have a potential as control agents for sand flies. © by PSP.
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    The Toxicity of Essential Oils From Three Origanum Species Against Head Louse, Pediculus humanus capitis
    (Springer Science and Business Media Deutschland GmbH, 2021) Arserim S.K.; Cetin H.; Yildirim A.; Limoncu M.E.; Cinbilgel I.; Kaya T.; Ozbel Y.; Balcioglu I.C.
    Purpose: Pediculosis caused by human head louse, Pediculus humanus capitis De Geer (Anoplura: Pediculidae) is a public health problem with a high prevalence, especially among children in school age. Different chemical pediculicides (insecticides) are used against lice but the repeated application of these pediculicides for the treatment of P. humanus capitis infestation in the past decades has resulted in the development of resistance. The plant essential oils have been used as alternative sources of lice treatment agents. Pediculicidal activity of the essential oils of three Origanum species (O. onites, O. majorana and O. minutiflorum) against P. humanus capitis adults was examined in this study. Methods: Essential oils from aerial parts of three Origanum species were obtained by hydrodistillation using a Clevenger-type apparatus. P. humanus capitis specimens used were obtained from infested children by combing method at primary schools. Adult lice were exposed to three dilutions (1%, 0.5% and 0.1% w/v) of tested oils for 5 min using the adult immersion test. Results: According to the results, all Origanum essential oils at 1% concentration have been shown to significantly decrease the rate of limb, bowel and abdomen movements, producing more than 90% mortality after 12 h. Conclusion: Our results indicated that Origanum essential oils can be used for the development of new pediculicides against head louse. © 2021, Witold Stefański Institute of Parasitology, Polish Academy of Sciences.