| abstract |
Insecticidal and acaricidal pyrethroid esters of formula residue is replaced by a hydroxy group or a leaving group readilv displaced bv carboxylate anions are also novel.n in which R is one of certain substituted cyclopropyl radicals, A and B are certain halo, haloalkyl, alkyl and alkoxy radicals and a and b are 0, 1, 2, 3, 4 or 5, are novel and may be included in insecticidal and acaricidal compositions and used for killing insects and acarids. They can be in cis or trans configuration. n Intermediate compounds in which the |