D-allethrin is a kind of pale yellow viscous transparent liquid workable insecticide. Proposed Dosage: In coil, 0.25%-0.35% content formulated with certain amount of synergistic agent ;in electro-thermal mosquito mat, 40% content formulated with proper solvent, propellant, developer, antioxidant and aromatizer; in aerosol preparation, 0.1%-0.2% content formulated with lethal agent and synergistic agent.