Point the fan at your feet

For a patio or a bedside in an ordinary mosquito season, the people here say yes, and they give the mechanism. Seven separate conversations say mosquitoes are weak fliers and that a fan’s airflow stops them approaching or landing; two more say a fan pointed at a fixed spot keeps that spot clear; single accounts add that the moving air also scatters the carbon dioxide and body heat that mosquitoes follow to find you, that an oscillating fan clears a whole patio, and that one account keeps chickens bite-free the same way. The placement matters, and one account gives the correction that this page is titled for: a fan aimed straight at a person can push insects toward them, so aim it at the feet and let the air travel up the body, or use two fans as a barrier. The people here argue how far this goes, and this page carries the argument as the envelope it is: one exchange, three accounts to two, says fans work on patios and for sleeping against some who still got bitten; two exchanges of two accounts each, and one across two conversations, two to three, say that in places where mosquitoes are dense the fan is not enough — one caution rated high, from the northern lake states of the US, calls fans useless there — and that a net, screens or a proper repellent are needed; the accounts’ decider is how many mosquitoes your place has and where the fan points. The cautions: a fan protects the space it reaches and no more; a bigger fan works better and is louder; and the fan is for mosquitoes, which are weak fliers — a housefly is the next question. One account rigged a trap from a fan and a square of screen, which catches what the fan pulls in; a trap that uses light and a fan, one account says, thins the local population inside a small radius. Two cautions the accounts make about the fan are jokes about ‘fan death’ and fire, which the accounts themselves dismiss.

Turn the lights off and give it somewhere brighter to go — six separate conversations do exactly this. Switch off every light in the room, switch on a light outside it — the hall, the porch, the room next door — and open the door or window between; flying insects steer toward light, and and the fly leaves on its own. It works for moths and for the mosquito you can hear but not see, and it is the only method in these conversations for an insect that is already indoors — a gap the accounts name several times, since these conversations are mostly about keeping them off you outside. For houseflies that keep coming, one account uses a bottle trap and an electric swatter, and says a patch of artificial grass was drawing them; another says the real work is sealing the gaps around doors and windows and removing whatever they breed in nearby, which is the next question with the water swapped for waste. A net over a bed is mentioned by one account; window screens the accounts do not discuss at all, and this page names both as the gap they are: one account says a bed net is the one thing that has kept them completely bite-free while sleeping, and these conversations say little more.

Find the water. Three separate conversations say the way to end a mosquito problem rather than manage it is to remove every source of standing water they can breed in — a blocked gutter, a rain barrel, a saucer under a pot, a bucket, a tarp with a puddle in it — . Single accounts add the ones people miss: a rain barrel can be stocked with a few small fish or, one account says, a few small fish that eat the larvae; an unsealed vent pipe on a septic tank turned out to be one account’s enormous hidden breeding ground until it was screened; a dumpster or an open bin breeds flies the way water breeds mosquitoes. One account says sealing the cracks around doors and windows did more for them than repellents, because it stopped them getting in at all. Two accounts add the rules of the insect itself, which shape everything else on this page: only the female mosquito bites, because she needs blood for her eggs, and she finds you by the carbon dioxide you breathe out and the smell of your feet — which is why one account aims the fan at the feet, and another says moving air blows the signal away as well as blocking the flight. Whether some people are simply more attractive to mosquitoes than others is agreed by two accounts and argued about in its causes; a caution says the blood-type explanation some accounts offer is anecdote.

The recognised repellents work and the folk ones mostly do not, and the people here corrected each other on this. Three separate conversations say the repellents containing the ingredient the accounts name most — or two others on the public-health list of recognised ones — are markedly more effective than the natural alternatives; two more say the same for the tropics, where one account says nothing else besides the recognised repellents and loose long sleeves does anything; this page checked that against US public-health guidance, which names those ingredients and none of the folk ones. The corrections: two conversations say dryer sheets rubbed on the skin repel mosquitoes, and two corrections — one across conversations — say they do not, that at best they mask scent for a moment, and that a fact-checking site says so; one exchange runs one account to three against them, and another, three to four across conversations, is scored in these conversations as better evidenced against all the household items. Citronella candles, one correction says, mostly contain artificial scent and do little even when genuine — one exchange says a ring of many candles or the live plant does more than one candle on the table; pure citronella oil on the skin has two conversations behind it and this page carries it as theirs. Garlic pills make you smell of garlic and a vitamin’s effect is anecdote, two cautions say, and the garlic makes you smell of garlic. On the recognised repellents the accounts have their own cautions, which this page carries: one caution rated high says a child who licks treated skin may have seizures, especially if prone to them; one says the main ingredient dissolves some plastics, so keep it off a watch face or a compass; one says heavy, repeated occupational exposure has been linked to sleep and mood effects, and one account calls it a neurotoxin — against which a caution says the risk of the illnesses mosquitoes carry outweighs occasional use, and three cautions rated high describe how serious those illnesses can be. Follow the label; this page prints no strength. The dryer-sheet argument has a second half the accounts spend a long time on — one exchange, six accounts to one, says the sheets contain chemicals that irritate and may be harmful, and two contraindications say not to rub them on skin if you are prone to rashes or allergic to the scents — and this page’s reading is that it is moot: they do not work, so there is no reason to wear them. One account says an essential-oil spray worked as well for them as the recognised repellents; this page carries that as two accounts, against the guidance.

Cover the skin, and think about the cat before you treat the clothes. Two separate conversations say the tropical and field version is long sleeves and long trousers, loose, tucked into socks, a face net where the insects are thick, and a repellent from the recognised list on what is left exposed; two conversations treat clothing with a fabric insecticide called permethrin as part of a field kit. Then the fence: one contraindication and a caution rated high say permethrin poisons cats and stays in the fabric after fabric after the first treatment, so anyone with a cat should not treat clothes at all, and another caution says no pet should touch treated fabric while it is wet. One caution says long sleeves in heat are a drag, . For sleeping, one account says a physical net is the only complete barrier they have found — better than sprays, coils or fans — and the accounts’ own gap is that a net gets one line and window screens none, so this page names them as the gap. One account says incense coils depend on the wind carrying the smoke the right way, and the wrong wind makes them useless. What the accounts do not cover, and this page will not invent: indoor mosquito control beyond the fan and the light trick, alternatives for people who cannot tolerate the recognised repellents, what any of it costs, and when to call a professional; . Two arguments in these conversations are not carried here: which regions have the worst mosquitoes, and a claim about which people they prefer, which one caution rated high in these conversations calls unfounded and offensive — the people here who said so were right.