Blue Bottle Fly

Blue Bottle Fly

Identyfication

Colour

Deep metallic blue and large red eyes.

Size

Adults 11mm long

Habitat

Common worldwide and in association with humans. Adults are active fliers, travelling several miles. Bluebottles can enter buildings readily to find breeding sites. They are breeding in carcasses, meat, offal, meat products.

Biology:
  • Eggs: whitish, 1,5mm, several batches of up to 180 on carcasses or meat. Hatch usually in 1-2 days.
  • Larvae: whitish legless maggots up to 18mm long in groups on carcass/meat. 3 moults usually develop in a few days (average 1 week)
  • Pupae: Inside reddish puparia in soil or dry areas. Develop in 1- 2 weeks.
  • Adults: 11mm long, large red eyes and acute sense of smell.
Importance:

Potential disease transmission. Pests of the meat industry and slaughterhouses. They may breed on dead rodents and birds within buildings.

Control:

Screens, good hygiene,  covering potential breeding materials. Residual or knockdown insecticide sprays for fast control. UV light devices in food premises.

blue bottle fly

Image: E.S. Ross

What are Blue Bottle Flies (Calliphora vicina and Calliphora vomitoria)? Pest Control Advice

Blue bottle flies, scientifically known as Calliphora Vicina and Calliphora Vomitoria, are a deep metallic blue and have large red eyes. These flies are usually found worldwide in association with humans and can be identified by their size, which is about 11mm long.

Blue bottle flies are active fliers, often travelling several miles in search of a breeding site. They can easily enter buildings in order to find a suitable place to breed, such as carcasses, meat, or offal. They typically lay multiple batches of eggs, up to 180, on dead animals or meat, which will hatch in 1-2 days and become larva maggots up to 18mm long. These maggots will moult three times, usually within a week, before they become pupae and enter a pupal stage inside reddish puparia in soil or dry areas. This takes 1-2 weeks before they emerge as the adult blue bottle fly.

Not only are blue bottle flies a nuisance, they also have potential to transmit diseases and are a pest of the meat industry. They commonly breed on dead rodents and birds within buildings, and so it is important to take steps to control their population. This can be done by using screens, practising good hygiene and covering potential breeding materials, as well as using residual or knockdown insecticide sprays for fast control, and UV light devices in food premises.

In conclusion, blue bottle flies, while a nuisance, can be identified by their deep metallic blue colour, large red eyes, and 11mm size. They are active fliers and can travel several miles in search of a breeding site, and have potential to transmit diseases. Therefore, it is important to take steps to control their population by using screens and insecticide sprays, as well as practising good hygiene.

Pest Control for Bluebottle Flies

Blue bottle flies (Calliphoridae) are a group of nuisance flies that can invade homes, businesses, and outdoor areas. They are common in urban and suburban areas, and can cause a variety of problems. Some of the main issues include the spread of disease, foul odours, and damage to food sources.

To prevent blue bottle flies from invading, there are several steps that can be taken. First, it is important to reduce the amount of potential food sources in the area. This can be done by sealing or disposing of any organic material such as garbage, compost, pet waste, or overripe fruits and vegetables. It is also important to keep the area clean by regularly disposing of any garbage or debris that could attract the flies.

The second step is to remove any potential breeding sites. Blue bottle flies are attracted to moist, dark areas where they can lay their eggs. This includes drains, moist soil, and compost piles. Remove any standing water or items that could potentially hold moisture and make sure drains are properly sealed.

Finally, setting traps can help reduce the number of blue bottle flies in the area. Traps that use attractants such as bait, light, and/or heat can be effective in capturing the flies  and preventing them from breeding.

In addition to these prevention methods, it is important to contact a pest control professional if an infestation does occur. Pest control professionals can provide advice on the best methods for controlling and eliminating blue bottle flies, as well as any other pests that may be present.

By following these prevention methods, it is possible to reduce the number of blue bottle flies in an area and prevent them from becoming a nuisance.

Types of Flies

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