Chemical composition and antifungal efficacy of five essential oils against Calonectria pseudonaviculata, the causal agent of boxwood blight: an in vitro study
2019
Samavat, Samaneh | Karimzadeh Asl, Khalil
Recent epidemics of box (boxwood) blight caused by the fungus Calonectria pseudonaviculata in Hyrcanian forests led to the search for eco-friendly fungicides. Essential oils (EOs) of medicinal plants undoubtedly have been highlighted as a new therapeutic approach. In this study, EOs from Cuminum cyminum, Lavandula angustifolia, Thymus daenensis, Trachyspermum copticum and Hyssopus officinalis were evaluated for their inhibitory activities against C. pseudonaviculata Cy-08 in vitro. Quantitative and qualitative composition variations of the EOs were also analysed by GC–MS. Based on the high inhibitory efficacy and low related EC₅₀, MFC and MIC values, T. copticum, L. angustifolia and Th. daenensis EOs can be mentioned as those providing extraordinary efficacy against Cy-08, respectively. Major chemical components of T. copticum, L. angustifolia and Th. daenensis EOs were thymol, linalyl acetate and thymol, respectively. Thymol and linalyl acetate may be the most effective compounds against C. pseudonaviculata.
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