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They buzz semi-lazily and seem to be everywhere. Are there more flies than usual right now? We asked two experts.
Tips of the Week: Are you plagued by flies and tired of catching them? We have advice on how to get rid of them.
Dear experts: Mari Steinert, Director of Pest Control Public Health Institute (FHI) and pest controller Glen Hovdal Pest Control1.
1. What kind of flies do we have in our house now?
– There are many species of flies, several of which may pop up in your home. But according to Mari Steinert, there are three types of flies we often see:
- Housefly = Must spend the winter indoors. Favors areas with farms and livestock. It seeks out most types of food and drink, spits on them and absorbs the nutrients.
- Spy Flu = Attracted to rotten and stale food, carcasses and feces. It likes to fly from dirty outdoor environments to clean indoor environments and can find food on kitchen counters. It can lay eggs in fresh meat and fish products. This is undesirable because in the worst case it can spread infection.
- Air flow = Belongs to the family Blowfly, but is most similar to the house fly. They are black and gray and are usually quite large. It actually lives in the wild and breeds there, but prefers to overwinter indoors. Attic flies don’t cause damage, like house flies can, but they can be a nuisance.
2. What is the function of flies?
– Flies are decomposers, making them good to keep in the garden. They go on rotting fruit and other waste, processing it and removing it. An important job of the blowfly is to eat things like carrion that would otherwise give off an odor. Flies are also excellent food for other insects and animals, Steinert said.
– Now, they are flying in people’s homes in this quiet country. Why are they so slow?
– The flies are very temperature sensitive at this time, coming in from 10-12 degrees outside, they become a little slow. Then it takes a while for them to really take effect, says Glenn Hovdahl.
3. Are there more flies than usual at this time?
– In midsummer, flies may breed in large numbers and come here to look for places to spend the winter. But it is difficult to answer whether there are more flies in someone’s home this year. Insects usually have great local differences, so we don’t have statistics on this, Steinert said.
At Skadedyrkontroll1 in Arendal, they have been receiving more calls than usual regarding ‘normal’ flies.
– Most people who call us with fly problems want advice on how to get rid of them. Then we have some general advice, says Hovdal at Pest Control.
4. How to get rid of them?
Hovdahl’s tips for getting rid of flies:
- Good waste management and frequent cleaning.
- Close doors and windows. There may be insect screens and air fresheners in front of windows.
- Check outside areas behind droppings for animals and fallen fruit and remove them.
- Flies don’t like the smell of certain natural oils, such as lavender, eucalyptus, and citronella. Get a scented bag or spray with one of these oils.
– Can you use insecticides purchased from stores and websites?
– We do not recommend using chemicals and poisons to get rid of flies. Don’t spray just a few flies in the house, which is very bad for the indoor climate and can be harmful to children, asthmatics and the elderly with weakened immune systems. Hovdahl says sprays may work on a large group of house flies in the attic, but not elsewhere.
Do you think there are more flies indoors than before?
Do you think there are more flies indoors than before?
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