Effi cacy of ridomil gold r as bactericide against potato black leg pathogen
Submitted by Гость (not verified) on Tue, 07/09/2024 - 16:45Bactericidal activity of copper-containing fungicide Ridomil Gold R (WDG) was tested in framework of potato black leg control. Three strains of bacteria causing potato black leg were employed in the trials: Dickeya chrysanthemi (DSM 4610, Germany), Pectobacterium carotovorum subsp. brasiliensis (Russia, Omsk region), Pectobacterium wasabiae (Russia, Kemerovo reg.). The activity was estimated in vitro by counting colony number on PDA agar with 0.1, 0.2, 0.4, 0.6, and 1.0% of the fungicide. According to the results, for all the tested bacteria Ridomil Gold R had LD100 = 0.2%.