Files have relatively short lifespans, however, they can rapidly reproduce in large numbers and are known to spread serious diseases around the world such as salmonella. The most common species in the UK are houseflies, fruit flies and drain flies each posing unique problems for people. Flies such as houseflies and blue bottles , are not only nuisance pests, but they are also responsible for transmitting diseases and contaminating food. For instance, flies are capable of contaminating food and transferring more than 100 pathogens, including salmonella and tuberculosis. Food contamination is one of the main reasons that fly pest control is so important. Flies are not only a nuisance but they are also responsible for transmitting diseases and contaminating food.