A synergistic insecticidal composition comprising two components: (A) at least one carbamate insecticide and (B) at least one pyrethroid insecticide is provided. There is also provided a process for preparing the insecticidal composition. A method to prevent, control and/or treat insect infestations in plants, plant parts and/or their surroundings by applying the synergistic insecticidal composition comprising the two components (A) and (B) is also provided.