In 1998-2001, the healthiness of thyme cultivated in the region of Lublin was examined, Surveys were made on the one-year-old plantations of thyme at a stage f 6-week-old seedlings and just before the first harvest of the crop, as well as on e two-year-old plantations in spring and before the last harvest. The percentage the plants showing fungal disease symptoms and the index of infection with, fungi were determined. The fungi were isolated from superficially disinfected plant fragments namely from roots, bases of stem and leaves, separately, using 'eral culture medium. PDA and SNA media were used to culture Fusarium spp. malt-agar and Czapek-Dox ones to culture Penicillium spp. and malt-agar, oat-agar and cherry-agar ones to culture Phoma spp. The percentage of plant infected with the fungi ranged within 12.18 and 23.05, in case of the one-year-old ,plantations, and within 29.91 and 43.65 in the two-year-old ones, whereas values the index of infection ranged within 11.56 and 24.69 and within 20.75 and .28, respectively. Necroses were observed on roots and base of stems on one'-old and two-year-old plantations, but in the last period of vegetation of thyme to harvest, very often stems and leaves showed symptoms of a complete necrosis. It was found that base of stems and roots of thyme in the first and the second year of cultivation were colonized by a complex of pathogenic fungi.
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