When an organosilicone surface
active agent is added to a pesticidal
aqueous suspension composition containing an
active ingredient compound of a sparingly water-soluble
pesticide for the purpose of attaining activity enhancement and formulation, the following problems arise: such that (1) the
viscosity of the composition increases; (2) a large amount of foams due to the organosilicone surface
active agent tends to generate at the time of preparation of a spray solution; and the like. Thus, measuring the composition and preparation of a spray solution were difficult. The present invention provides a pesticidal
aqueous suspension composition including (a) an
active ingredient compound of a sparingly water-soluble
pesticide, (b) an organosilicone surface
active agent, (c) a
viscosity-
reducing agent, (d) an antifoaming agent, (e) a pH adjustor and (f) a dispersant, which is suppressed in increasing in the
viscosity, is easy to measure, hardly generates foams at the time of
dilution with water and is easy to prepare a spray solution.