Flies can be a nuisance when buzzing around the home, particularly if in large numbers. However, some species of fly also pose a health risk. In particular, house flies transmit a wide range of diseases including salmonella, dysentery, tuberculosis, cholera and parasitic worms. In this country, mosquitoes are less likely to spread disease than in the tropics, but the irritation caused by the bites can still be distressing, particularly for children.

Types of Fly Problem
There are thousands of different species of fly but the most common fly problems are caused by:
 
Houseflies - adults 6-7mm. Female houseflies lay 400-600 eggs in decaying matter or faeces, which develop into maggot larvae. Attracted to any uncovered food or organic waste.
 
Blow Flies or Bottle Flies - Adults 6-12mm, usually metallic blue or green but can be black or grey. Significant numbers in a house will often indicate a dead animal (such as a mouse) in the property.
 
Cluster Flies - adults 6-10mm. Cluster flies often take shelter over the winter inside homes (such as in attics) and can occur in very large numbers in the home as they emerge in the spring.
 
Mosquitoes - adults 5mm. Tend to be found near still water where their larvae develop. Our guide to insect bites advises on treatment for bites.
How to keep flies away

For many species of fly including house flies and bottle flies, it is important not to attract flies with food sources or places for fly larvae to grow:

	Always cover food - flies spread diseases by landing on food before we eat it
	Clear away food and liquid spillages immediately
	Clean food debris from under kitchen appliances
	Make sure all rubbish bins have tightly sealed lids
	Keep compost enclosed and covered
	Clean up after pets - not only are faeces the perfect breeding place for flies but also somewhere a fly may land before landing on your food

	Ensure drains are kept clear and running
	Treat drains that seem to have flies with bleach
	Ensure gutters and water gullies are not blocked
	Cover water butts with a lid
	Do not leave standing water (eg in watering cans)
	Introduce goldfish into garden ponds to eat fly larvae

	After dark, keep windows and doors closed or block out the light with curtains
	Fit fly screens to windows especially around kitchen and waste areas

Professional fly control
While DIY products can deal with smaller fly problems, a professional pest control service will be required for larger or multiple infestations. Pes-Tech technicians understand the habits of each species and also have a range of powerful insecticides to deal with flies and provide the reassurance that the problem has been fully dealt with.

Pes-Tech offers a call-out service to deal with fly and other pest problems in the home. Our service is fast, effective and offers the highest level of safety for your family and pets. If you would like further advice or to arrange a visit by a Pes-Tech technician, call or e-mail.