Akademik Veri Yönetim Sistemi
FRESENIUS ENVIRONMENTAL BULLETIN, cilt.23, sa.8A, ss.2002-2010, 2014 (SCI-Expanded)
In this study, essential oils obtained from anise (Pimpinella anisum L.), eucalyptus (Eucalyptus camaldulensis Dehn.), peppermint (Mentha piperita L.) and two Origanum species (O. minutiflorum O. Schwarz & P.H. Davis and O. onites L.) and their major components (trans-anethole, eucalyptol, menthol, carvacrol and thymol, respectively) were tested for their fumigant activity against adults of mushroom cecid flies (Diptera: Cecidomyiidae), which are among the most common insect pests causing important yield losses in the mushroom growing cellars in the Antalya-Korkuteli district (southwestern Turkey). Various concentrations (1, 5, 10, 20 and 40 mu l/l air) and exposure periods (1, 4 and 8 h) were used to determine the fumigant activity of the test materials. At the lowest concentration (1 mu l/l air), the mortality was generally exposure period-dependent, however, at the higher concentrations (20 and 40 01 air) all of the essential oils and components (except for transanethole and menthol at an exposure period of 1 h) achieved 100% mortality at all the exposure periods used in the tests. At the lowest concentration (1 mu l/l air) and the shortest exposure period (1 h), the most active essential oil was M. piperita with a mortality of 97.0%, followed by E. camaldulensis (92.0%) and P. anisum (78.0%). Among the components tested, carvacrol was the most active essential oil component, causing 87.0% mortality of the adults of mushroom cecid flies. Contrary to M piperita essential oil, its major component, menthol, was found the least active essential oil component with a mortality of 48.0%. Our overall results suggest that a dose of 10 mu l/l air and an exposure period of 4 h are the most applicable and practical parameters for all of the essential oils and the components tested.