EN
The occurrence of stem and leaf diseases caused by pathogenic fungi was assessed on a short rotation willow plantation in Jaworzno-Dąb. Willow bushes of different age (five, six, eleven – year) were cultivated on the plantation. The research was conducted in 2006–2007. Spotting caused by Drepanopeziza spp. as a willow shoot and leaf disease occurred with the highest frequency. The oldest bushes of willow were most severely damaged by shoot and leaf diseases. Monitoring of willow diseases is a necessary strategy for the control of sanitary conditions of willows grown as bioenergetic plants.