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They're only downstairs, not up, and our thinking is that something has crawled somewhere and died, and the flies are hatching. For the life of us we can't see where they're coming from. As if in a horror movie they seem to manifest right before your eyes!
They flies are big, and very sluggish - easy to swat. However, because of the sheer number we've had to resort to chemical warfare in the form of Vapona - not something we really want in the house, but at the moment it's the lesser of two evils!
Pest control is next if this doesn't abate.
Anyone experienced this? Is it just a short cycle of hatching for a few days and that's it, or does the cycle continue?
How best to get rid of them?
I'm trying to think of which horror movies have scenes in which masses of flies swarm. It's not quite like that, but when those buggers have been sprayed and are breakdancing at 100 mph on their back and buzzing loudly, it's sure starts to get a bit disconcerting to say the least!
But seriously, whenever we have an invasion of flies (not quite that bad), it can usually be traced back to spoiled food somewhere, or as you pointed out, a dead animal. Do you guys have a basement? That would be my first place to look, but I'm sure you have already done that. If it is a dead animal, I would think you could rely on your olfactory to lead you to the poor perpetrator, otherwise call the pros.
Good luck with that :)
joined:Dec 10, 2005
wow, i managed to read "files" instead of "flies" until I was two paragraphes in.
I tend to agree with tangor. Prevent access to any food supplies, and they'll eventually die. Passive traps may get some. But even one left buzzing around is almost as annoying as 2 or more.
The old Shell No-pest strips worked pretty well, but had to be taken off the market in the U.S. You can supposedly still get them in Mexico.
Then one day they were everywhere..just as you described, very large and easy to swat. I think it lasted about 3 - 4 days and they finally stopped appearing.
However the source of the flies was easy to locate, it was the garbage bin in the kitchen and the dirty plates that kept piling up there.
A helpful tip for the summer: To prevent mold on dirty plates put them in the freezer. Keeps them fresh for a few more days.
...maybe you can get your local lizard club to come by for a free meal...
Thinking along those lines, and because do get flies in the warmer weather, we recently bought a pitcher plant to take care of them.
First day in with this fly invasion and I'm feeding the poor plant until it's stuffed. Reckon it's got indigestion still.
The problem seems to have died down a little now. They're still coming, but in lesser numbers now. I've filled in a few cracks and gaps where they might have been crawling through. I've also bleach-washed floors and disinfected surfaces.
We found that our outside bin was teeming with maggots. This could be the obvious source, although how they're getting into the house is unknown.
Happily, it's bin collection day tomorrow.
We had that very experience last year. Ewe it was nasty. In droves they were coming from the window in our bath room. Never saw what they were hatching from...it lasted a few days and then they just stopped coming/hatching. Fortunately I was able to spray them with very soapy water aand that suffocated a bunch of them on the window sill. Damn it was nasty. Make me gag.
Last year, horrible… We have a feline, boy she went after them, and that was more disturbing that the flies them selves. Broke 2 vases, knocked off a coffee maker full of brew, and a bottle of very expensive vine :(.