Synergistic activity of peracetic acid and at least one SAR inducer for the control of pathogens in and onto growing plants

摘要

A method for controlling pathogens on a plant tissue of a growing plant with an aqueous solution resulting from the dissolution in water of a powdered composition comprising a dry, water soluble mixture of (i) a peracetic acid precursor comprising: a solid hydrogen peroxide precursor, optionally a pH adjusting agent, and an acetylating agent; and (ii) at least one SAR inducer which is a water soluble silicate salt defining a source of silicate ions, to generate in situ peracetic acid (PAA). A synergistic effect is observed once the SAR inducer which is a water soluble silicate salt defining a source of silicate ions, and the peracetic acid are respectively simultaneously present in and on the plant.

主权项

1. A method for controlling pathogens on a plant tissue of a growing plant having roots and leaves, said method comprising treating said growing plant with an aqueous solution resulting from the dissolution in water of a composition comprising a water soluble mixture of (i) a peracetic acid precursor comprising: a) hydrogen peroxide, hydrogen peroxide precursor or a mixture thereof, b) optionally a pH adjusting agent, and c) an acetylating agent; and (ii) at least one SAR inducer which is a water soluble silicate salt defining a source of silicate ions; wherein said composition generates peracetic acid (PAA) upon addition of water, the resulting aqueous solution comprising peracetic acid at a concentration and a pH which are not harmful for said plant tissue and at least one SAR inducer which is a water soluble silicate salt defining a source of silicate ions, and and wherein said treatment is optionally repeated according to a predetermined schedule, synergistic effect being observed once the SAR inducer which is a water soluble silicate salt defining a source of silicate ions, and the peracetic acid are respectively simultaneously present in and on the plant.