The thesis was focused on the evaluation of the health status of winter wheat leaves. The experiments were established in the autumn of 2017 in the terrier area of Veľaty, the district of Trebišov, the county of Košice, in the south - east of Slovakia on my own fields. We tested five line wheat varieties. Evaluation of each experiments was performed three times. The least affected was the Genius type. On the other site the lowest level of fungal pathogen resistance was in the Bertold variety. Probably due to its unstaining. The Bodycek variety also appeared very well, but because it was not regulated by growth, it did not achieve the desired results. In the experimental fields, we focused primarily on the attack of wheat leaves by fungal pathogens that cause severe leaf diseases.