Mortein's Slogans & Taglines

Mortein is an Australian household insecticide brand founded in the 1870s by German immigrant J. Hagemann, who developed a pyrethrum extract from crushed chrysanthemum flowers to create an insecticidal powder. The name derives from the French word mort (dead) and the German ein (one), conveying the promise of a single, deadly solution. In 1953, the brand pioneered Australia's first commercially produced aerosol, the Pressure Pak, and became one of the first advertisers on Australian television in 1956. The iconic mascot Louie the Fly debuted in 1957, delivering the memorable line one of nature's deadliest killers. In 1969, Samuel Taylor Pty Ltd was acquired by British company Reckitt & Colman. Core offerings today span aerosols, liquid sprays, electrical vaporisers, and the Insta range, positioned around the mission to make every home a pest-free haven. Brand messaging has evolved from the early Dead one? Nice one! positioning to contemporary public-health campaigns such as Fight to End Malaria, reflecting a shift from pure pest control to disease prevention.