House flies (Musca domestica) are small winged insects, mostly found in and around human dwellings. They are about 6-7mm in length and have a grey thorax with four dark stripes on their back. Their mouthparts are designed for liquid-feeding, and they have a proboscis, which is used to pierce the food surface to suck up liquid.
House flies are known for their attraction to sugary and fermented substances. They are known to defecate frequently, and their faeces can contain many harmful pathogens. They are known to transmit various diseases, as they can pick up pathogens from faeces, garbage, or other unsanitary materials and can spread them when they land on food, surfaces, or other objects.
House flies are considered a nuisance and a public health concern and are known to be carriers of bacteria, viruses, protozoa, and helminths that can cause diseases in humans and animals.
How to use Fly Screens to get rid of house flies:
Fly screens, also known as fly mesh or insect screens, are designed to keep flies and other flying insects out of a building while allowing fresh air to enter. They typically consist of a frame with a mesh screen stretched across it. The mesh is made of a durable material that is fine enough to keep out flies and other flying insects, but still allows air to pass through.
Here’s how fly screens trap house flies:
- Physical barrier: The mesh screen acts as a physical barrier that prevents flies from entering the building. The small openings in the mesh are too small for flies to pass through, so they are unable to enter the building.
- Trapping: Some fly screens have a sticky coating that trap flies when they come into contact with the screen. This can be an effective way of reducing the number of flies in the building.
- Light trap: Some fly screens include a light trap, which uses UV light to attract flies to the screen. The flies are then trapped on a sticky surface or in a small container.
- Airflow: The airflow through the screens can be adjusted, this way the screens can create a barrier of air that will prevent flies from entering the building.
House flies can contaminate a house in several ways:
- Landing on surfaces: When a house fly lands on a surface, it can transfer bacteria, viruses, and other pathogens from its feet and mouthparts to that surface. These pathogens can then be transferred to a person’s hands, mouth, eyes, or nose, leading to infection.
- Contaminating food and drinks: House flies can transfer bacteria and other pathogens from their feet and mouthparts to food and drinks. They are particularly attracted to sugary and fermented substances. If a person eats or drinks contaminated food or liquid, he/she can get infected with the pathogens.
- Spreading diseases through their faeces: House flies defecate frequently, and their faeces can carry many harmful pathogens. When they land on food, surfaces, or other objects, they can transfer these pathogens to humans.
- Breeding in unsanitary conditions: House flies can breed and lay eggs in unsanitary conditions such as garbage, compost piles, or animal manure. These breeding sites can serve as a source of infestation and can spread disease-causing microorganisms.