Reducing the consumption of pesticides when they are used together with biostimulants on spring wheat

The article is devoted to the study of the joint use of chemical fungicides with biological preparations on spring wheat. The chemical fungicides Alto Super and Oscar, biological preparations Baksis, 1 l/ha + Rhizoplan, 1 l/ha, multiplicity - 2; Nigor++, 0.1 l/ha, multiplicity - 2; Alto Super 0.25 l/ha + Baksis 1 l/ha + Rhizoplan, 1 l/ha + Nigor++ - 1 treatment; Oscar 0.4 l/ha l/ha + Baksis 1 l/ha + Rhizoplan, 1 l/ha + Nigor++ - 1 treatmen have been considered. The best result was the variant with the use of the chemical preparations Alto Super and Oscar, the biological effectiveness in terms of the degree of damage was 70%, in terms of prevalence 60%. Biological efficacy on the variant with the use of the tank mixture Alto Super + Baksis + Rizoplan + Nigor++; Oscar + Baksis + Rizoplan + Ni-gor++, according to the degree of lesion was 54%, by prevalence 47%. The variant where the Baksis + Rhizoplan tank mixture was used, the biological efficiency by the degree of lesion was 25%, by the prevalence of 21%. Using the variant with the biological drug Ni-gor++, the biological efficacy by degree of lesion was 13%, by prevalence 11%. The yield data show us that the use of chemical preparations with biological ones gives a reliable increase in yield of 11.2 c/ha from the control, which was 19.5% in percentage, which is 4.9% less than the variant where chemical fungicides were used.