Product Description: Insecticide for the control of flies in poultry houses. Other Benefits and Features: It has combined power of two active ingredients reducing the chances of fly survival. Diflubenzuron is of benzoylurea class that acts by inhibiting the production of chitin which is used to build exoskeleton triggering fly larvae to molt early resulting to its death. Deltamethrin is a pyrethroid insecticide that kills insects on contact and through ingestion. It rapidly paralyzes the insect nervous system giving a quick knockdown effect.