METHOD FOR CONTROLLING A FUNGAL FOLIAR PATHOGENS WITH AN EXTRACT FROM YUCCA

摘要

The invention relates to control of fungal foliar diseases in plants, preferably Rosaceae, such as apple scab (Venturia inaequalis), pear scab (Venturia pirina), brown spot (Stemphylium vesicarium) and powdery mildew (Podosphaera leucotricha) by treatment of plant with an extract of Yucca species, preferably Y. schidigera or Y. filamentosa. The treatment is effective in both prevention and treatment of the fungal infection.