| abstract |
The new fluoroalkenyl-substituted cyclopropanecarboxylic esters of the formula I <IMAGE> in which R¹ for hydrogen, chlorine, bromine C1-4-alkyl, C1-4-haloalkyl, R² for chlorine, bromine, C1-4-alkyl or C1-4-haloalkyl, R³ represents halogen, preferably Cl and Br, CF3 or R¹-CF-R² and R represents the remainder of an alcohol customary in pyrethroids, have insecticidal and / or acaricidal activity. They are manufactured e.g. in the following way: |