FIELD: agriculture.
SUBSTANCE: invention relates to the control of a plant pathogen, improvement of plant growth and/or increase yield, maintenance or increase in the efficiency of an irrigation system. A method for the control of a plant pathogen is proposed, including the application of the effective amount of a composition to one or more plants infected with the pathogen, and/or the application of the effective amount of a composition to one or more plant sites in such a way that the pathogen is subjected to the action of the composition. In this case, the pathogen is fungus or bacterium. The composition contains from 88% to 92% by weight of fermented yeast supernatant and from 8% to 12% by weight of one or more non-ionic surfactants, wherein the composition is free of any active enzymes, pH of the composition is less than 5.0, and the effective amount of the composition has the final concentration from 0.0001% to 10%. The specified composition is also used for the improvement of plant growth and/or increase in yield and for the maintenance or increase in the efficiency of an irrigation system.
EFFECT: invention can be effectively used for the control of a plant pathogen, improvement of plant growth and/or increase in yield, maintenance or increase in the efficiency of an irrigation system.
28 cl, 10 ex
