Sources of sunflower plant infection by fungus of Fusarium

Main sources of sunllower plant infection by fungus of Fusarium are determinated. Species composition of fusarioses in soil, air, and sunflower plant parts affected by this pathogen was studied. The most spread and pathogen species caused different kinds sunflower diseases (rot, willing, spot) were detected. Dynamics of frequency of different fusarioses species in sunflower vegetative period is shown.