This invention discloses a method for controlling potato scab, relating to the field of
crop cultivation methods. The method includes: Step S1, preparing a
coating agent: mixing a first
active ingredient and a second
active ingredient, wherein the first
active ingredient is selected from
neonicotinoid insecticides or macrolide insecticides, and the second active ingredient is selected from at least one of methoxyacrylates,
organosulfur compounds, or inorganic
copper fungicides; Step S2, seed potato
coating treatment: mixing the
coating composition with potato seed potatoes to ensure the composition is uniformly adhered to the seed potato surface; Step S3,
sowing. This invention, through the
synergistic combination of insecticides and fungicides, controls pathogens and pests at the source, combining growth-stage control and
soil treatment to construct a comprehensive, multi-effect control method, improving control
efficacy, reducing
pesticide usage, and achieving highly efficient control of potato scab.