Why are flea control products mixed with IGRs?

• A. for better knock down of adults
• B. to achieve quicker control
• C. to kill all stages
• D. for better overall control

Answer: (D)

Mixing flea control products with an insect growth regulator provides both immediate relief and longer-term suppression of the flea population. An adulticide delivers a quick knockdown of the currently active fleas, giving fast control of biting and visible infestation. The IGR disrupts the flea life cycle by mimicking juvenile hormones, preventing eggs from developing into larvae and stopping larvae from maturing into adults. This means fewer new fleas in the coming weeks. Using both together targets multiple life stages, so you get rapid reduction plus ongoing suppression, resulting in better overall control than using either product alone.