03/09/2026
Stable Fly is the bane of so many animals and is one of the most widespread flies in the UK. The adult is 5-7mm long, identified by a light brown colour, with a pale stripe on the thorax. Stable Fly bear thick hairs across the thorax and abdomen, and their prominent proboscis can distinguish this from Horse Fly. They can be particularly troublesome in milking parlours and in grazing areas, as they follow CO2 and heat produced by animals to find food and breeding grounds, but the larvae can be identified by its pale yellow to creamy white colour and it has two rear spiracles and a mouth hook like most fly maggots.
Stable Fly can breed in and wet fermenting or rotting organic matter, giving them the nickname “lawn-mower fly” as the larvae can often be found in the grass trimmings on the underside of lawn mowers – getting egg control to these breeding areas is the key to controlling them.
For treating the Stable Fly, we recommend Biomite, a mite that eats fly eggs and fly larvae, which can be used in combination with other BESTICO products to attack other pest fly species. For more information, including guidance on usage and free site assessments, send us an email on [email protected] or call 01284 636362 – check the link in our bio for more details!