Pyrethroid pesticidal compositions

Abstract

The invention provides pesticidal compositions containing the compound of formula ##STR1## known as phoxim, and pyrethroid insecticides of formula ##STR2## wherein A is an optionally-substituted aralkyl, alkyl, cycloalkyl or arylaminoalkyl group, R is hydrogen, cyano or ethynyl, X is alkyl, alkenyl, aralkyl or aryloxy, and n is 1 to 5, especially cypermethrin, permethrin and fenvalerate, methods of preparing the compositions and methods of combating pests at a locus by applying the compositions to the locus. The pesticidal compositions have surprising synergistic activity against acarids.

Dependencies are inferred from the claim text.