Provided are: an agrochemical composition containing a pyribencarb that mixes well with an agrochemical composition containing etofenprox； and a dispersal method therefor. The agrochemical composition and a dispersal method therefor, said agrochemical composition containing a pyribencarb (A) and a surfactant (B) and being characterized by including, as the surfactant (B), only: (B1) a lignin sulfonic acid salt having a purity of 85% by mass and containing less than 5% by mass of a reducing sugar and less than 6% by mass of a sugar sulfonate； and (B2) a monoalkylarylsufonate formalin condensate and/or a polycarbonate having a mass-average molecular weight of 5,000-50,000.
