IN VITRO EFFECT OF ESSENTIAL OILS FROM AROMATIC AND MEDICINAL PLANTS ON MUSHROOM PATHOGENS: VeRTIcIllIum fuNgIcOla vAR. fuNgIcOla, mycOgONe peRNIcIOsa, AND cladObOTRyum SP.

Lavender, anise, chamomile, fennel, geranium, oregano, parsley, and sage essential oils were tested for their effectiveness against mushroom pathogens: Verticillium fungicola var. fungicola, Mycogone perniciosa, and Cladobotryum sp. Isolates were exposed to the volatile phase of the oils and then ventilated in order to determine if the effect of the oil was lethal to the pathogen. Oregano and geranium oils were the most toxic, having a fungicidal effect at 0.02-0.08 μl/ml of air, depending on the pathogen. Oregano oil was characterized by high content of carvacrol and thymol, while citranelol and geraniol were the main components of geranium oil.