The present invention relates to a formulation comprising (a) at least one pesticide; and (b) at least one non-ionic surfactant of formula (I): R1-O-(AO)x-(H); wherein R1 represents straight-chain or branched alkyl having 4 to 20 carbon atoms; AO is ethyleneoxy, propyleneoxy or a mixture of ethyleneoxy and propyleneoxy; and x correspond to values from 2 to 30; and (c) at least one ionic tristyrylphenyl alkoylate; and (d) at least one oil; and (e) water, wherein the pesticide is present in the aqueous phase in form of a suspension and the oil is essentially free of pesticide.
