The subject invention provides stable liquid fluensulfone formulations comprising an amount of fluensulfone, an amount of a cyclic ketone, and at least one agrochemically acceptable inert additive. The subject invention also provides high-concentration formulations comprising fluensulfone and at least one agrochemically acceptable inert additive, wherein the formulation comprises an organic phase and the concentration of fluensulfone in the organic phase of the formulation is greater than 40 pcnt by weight. The subject invention also provides methods of controlling a pest using the fluensulfone formulations described herein. The present invention provides processes of preparing the fluensulfone formulations described herein.
