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Colletotrichum gloeosporioides is a major plant pathogen worldwide. It is known to cause anthracnose in many crop plants, which ultimately leads to significant yield loss. In the present study, a fungus was isolated from the infected mango leaf and identified by 28S rDNA sequencing as C. gloeosporioides. Seventy-five different essential oils (EOs) were tested against C. gloeosporioides to evaluate the antifungal activities. Fungal suspension was spread on Potato Dextrose Agar (PDA) and tested with 5 µL of different EOs on disc. The tested EOs against C. gloeosporioides showed various ranges of inhibitory activity. Amongst the tested 75 EOs, four EOs showed remarkably higher antifungal activities. Considering the promising utilities of these EOs, gas chromatography–mass spectral (GC-MS) analysis was performed and the probable role of the key components of the EOs in antifungal activities is discussed. The potential of these EOs as ecofriendly and economical biocontrol in agriculture is reported.
Rabari et al. (Wed,) studied this question.