Provided are an aqueous suspension agrochemical composition of pyribencarb suitable for aerial spraying and a method for spraying the composition, wherein storage stability is not impaired since particle growth over time is suppressed, and hard cake formation is suppressed even when a spray solution is prepared at a high concentration with a low dilution factor at the time of use. The present invention is an aqueous suspension agrochemical composition characterized by containing pyribencarb which is an agrochemically active component, a polyacrylic acid salt, a surfactant, a thickener, and water. The present invention is a method for aerial spraying of an aqueous suspension agrochemical composition, which comprises spraying a diluted solution onto agricultural land or non-agricultural land at an amount of 8 to 32 kg/ha from an aircraft equipped with an agricultural preparation spraying function, the diluted solution being prepared by diluting the aqueous suspension agrochemical composition in water for spraying in an amount of 31 times or less the total amount of the composition on mass basis.
