Ludgershall Bike Night
Evening at Calvert

Bite Back Against the Mosquitos

Drainpipe

If you've been plagued by mosquitos in this hot weather, it's because they are breeding somewhere nearby, in stagnant water.

I realised they were breeding in my rainwater gullies, which look like the picture. I poured a bucket of water down each one, which seems to have flushed any larvae away and makes sure that the trap (like a U-bend) has enough water in it to seal.

It works. I haven't been bothered since. I had already checked there was no stagnant water in my garden, and turned a couple of old water butts upside down; mosquitos only need a very tiny amount of stagnant water to breed. You might have a different design, or there's some other sort of gully arrangement, perhaps on a hardstanding for water runoff. Another bucket of water down each one after a week might be a good idea, too.

Some will tell you to drop a little oil into the water as it stops the larvae from breathing, but as water from stormwater drains isn't treated, this is frowned upon; the oil ends up in the rivers or the sea.

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