Insecticidal emulsions comprise a pyrethroid insecticide (I), an emulsifier system (II) and water. The concn. of (II) is (a) at least equal to that of (I), and (b) no more than 6 wt.%. (I) comprises 3-phenoxybenzyl chrysanthemate (Ib), 3-allyl-2-methyl-4-oxo-2-cyclopentenyl 2,2,3,3-tetramethyl -cyclopropanecarboxylate (Ic), 2-methyl-4-oxo-3(2-propynyl) -cyclopentenyl chrysanthemate (Id) and/or alpha-cyano-3-phenoxybenzyl chrysanthemate (Ie), opt. mixed with alpha-cyano-3-phenoxybenzyl 2,2,3,3-tetramethyl -cyclopropanecarboxylate (If), 3,4,5,6-tetrahydrophthalimido methyl chrysanthemate (Ig), 3-phenoxybenzyl 3-(2,2-dichlerovinyl)-2,2 -dimethyl-cyclopropanecarbo xylate (Ih) and/or 1-ethynyl-2-methyl -2-pentenyl chrysanthemate (Ii). (II) is a mixt. of at least one metal alkylbenzene-sulphonate (IIa), at least one nonionic surfactant (IIb) with an HLB of 10-18, and at least one polar solvent (IIc).
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