An improved pesticidal aqueous suspension concentrate and a process for production thereof.

摘要

A pesticidal aqueous suspension concentrate containing as an active ingredient a 3-substituted pyrazole derivative represented by the general formula (I): <CHEM> (wherein the substituents are as defined in the description of the specification) in which the 50% particle size and 90% particle size in cumulative particle size distribution of particles of the active ingredient are less than 1 mu m and less than 2 mu m, respectively, and which is harmless to useful crops and is equal to an emulsifiable concentrate in herbicidal effect; and a process for producing said pesticidal aqueous suspension concentrate.