These flies are about 4 mm long and infest meat that is high (aged to improve its taste), smoked fish, cheese and rotting animal carcasses. Their larvae are known for being able to jump up to 15 cm high. Rarer in residential areas, cheese flies are sometimes seen in agri-food and restaurant environments. They tend to reproduce in places that are difficult to access where organic matter has accumulated over time. An integrated pest management plan with minimal or no use of pesticides can fix the problem.