The effect of ultraviolet diode radiation on the growth rate of Alternaria colonies

Phytopathogenic micromycetes induce dangerous crop diseases. Traditionally, fungicides have been used to prevent these In recent years, environmentally friendly non-chemical methods for combating fungal infections developed. particular, ultraviolet (UV) treatment of various wavelengths, intensities and origins has shown be effective. this work, we analysed the effect diode low-intensity shortwave UV radiation (UV-C) on growth potential viability mycelium Alternaria radicina A. alternata, pathogens important crops. It was that irradiation by UV-C inhibited species at early stages development. This high in first 3 d after exposure; however, 5 irradiation, pathogenic fungi fully restored, suggesting can only partial removal Alternaria. found alternata is less sensitive irradiation. The obtained results indicate micromycetes, particularly, containing melanin levels, are resistant