A stabilized oxidizer composition, and method and use for improving disinfection, sanitation and/or disease control, and kit for preparing said composition. A stabilized oxidizer composition and a method for improving the stability and/or efficiency of said oxidizer composition. A powdered composition for the preparation of such stabilized and/or more efficient oxidizer composition. A stabilized and/or more efficient oxidizer composition, and method for improving the stability and pesticidal activity of the oxidant when mixed with other pesticides. Uses and methods involving said stabilized and/or more efficient oxidizer composition, and a kit for the preparation of a stabilized and/or more efficient oxidizer composition, advantageously in order to obtain a more efficient control of pathogens in and on any kind of surfaces in general, preferably on surfaces of the tissues of a growing plant. Preferably, the oxidizer mentioned hereinabove may be peracetic acid, hydrogen peroxide, or a precursor thereof.
