Ethanol and water extracts obtained on Soxhlet apparatus from various organ s ,parts (leaves, flowers, shoots, onion, bark, fruit) of 30 herb al and woody plants species were tested for growth inhibition of Erwinia amylovora using agar diffusion , d. Active extracts were found in 23 plant species but in 13 of them it was found .for the first time. The highest diameter of growth inhibition zone of this bacterium was ~ by extracts from Aloe arborescens, Juglans regia, Rhus typhina, Salvia officinalis and Satureja hortensis. In almost all cases ethanol appeared to be a better solvent of active plant substances against E. amylovora than water.