A well-know brand name in the British pigeon world, Harkers is the UK's bestselling supplier of pigeon products since 1954. Distinct packaging and branding. A highly effective insecticide for use against red mite in pigeon lofts. Pigeons do not have to be removed when using Harkamitex. Contains Cypermethrin 1.84% w/w and each 140 ml bottle will make 9 litres of ready-to-use solution.