Plant pathogen inhibitor combinations and methods of use

摘要

Disclosed is a method for modulating a phytopathogenic infection in a plant comprising applying to the plant and/or seeds thereof and/or substrate used for growing said plant an amount of (a) an extract derived from a Reynoutria sp. plant, wherein said extract comprises one or more anthraquinone derivatives that induce plant resistance to phytopathogens, wherein said derivative (i) has the structure as defined in the specification; and (b) acibenzolar-S-methyl; effective to synergistically modulate the phytopathogenic infection, and wherein synergism is measured by determining E/Ee and E/Ee is at least 1.2