horse fly infestation?
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horse fly infestation? (by Jawja [GA]) Aug 3, 2012 8:55 AM
       horse fly infestation? (by Carolyn [MO]) Aug 3, 2012 9:35 AM
       horse fly infestation? (by BJS [CA]) Aug 3, 2012 10:03 AM
       horse fly infestation? (by Reid [KS]) Aug 3, 2012 10:29 AM
       horse fly infestation? (by Bill [TX]) Aug 3, 2012 10:33 AM
       horse fly infestation? (by John [NJ]) Aug 3, 2012 10:52 AM
       horse fly infestation? (by Carolyn [MO]) Aug 3, 2012 10:58 AM
       horse fly infestation? (by jawja [GA]) Aug 3, 2012 12:33 PM
       horse fly infestation? (by Dan [WI]) Aug 3, 2012 2:42 PM
       horse fly infestation? (by Reid [KS]) Aug 3, 2012 8:55 PM
       horse fly infestation? (by Janet [KY]) Aug 3, 2012 10:05 PM
       horse fly infestation? (by JT [TX]) Jan 5, 2014 12:21 PM
       horse fly infestation? (by JT [TX]) Jan 5, 2014 12:53 PM

horse fly infestation? (by Jawja [GA]) Posted on: Aug 3, 2012 8:55 AM

My tenant who lives in an old farmhouse, just called and is having a horsefly infestation! The house is well maintained, screen doors, window units, unused fireplace ... but this is a first.

She said they are swarming in her kitchen around the a/c (at least 20)

She is killing them as we speak.

This tenant never complains, but we need to figure out how they could get in all at once (this morning) and how to prevent them.

The area around the a/c window unit is still sealed around the sides as usual, but could they be coming THROUGH it or would they be swarming in the cool area or on the wall?

She's from horse country and has never seen anything like this and I have never heard anything like this.

Any ideas what would cause a swarm of large horse flies to come in a house and how to seal/prevent further infestation?


Jody --76.17.xx.xx

horse fly infestation? (by Carolyn [MO]) Posted on: Aug 3, 2012 9:35 AM

I have gotten swarms of flys a couple of times. It is when the weather warms up. They are all flying against my large and sunny kitchen window. I swat like mad for a couple of days, and then they pretty much disappear.

horse fly infestation? (by BJS [CA]) Posted on: Aug 3, 2012 10:03 AM

Identification Horse flies tend to be the same size as common house flies or larger but the appearance of their antennae makes them easily distinguishable. Horse flies all have three antennal segments, two jutting out on either side and a much larger and more visible segment between the other two.

Horse flies also always have brown, gray, or black bodies and dark colored wings. Preventative Control As is the case with most other types of insect infestations, preventative measures are your first lines of defense against horse flies in the home. Good sanitation and house-cleaning practices can stave off a horse fly infestation since their larvae tend to develop within decaying organic matter.

Installing screen on doorways and windows can also prevent horse flies from coming indoors and taking up residence in your home. Natural Control If you have already discovered a horse fly infestation in your home, however, preventative measures will be of a little use.Natural control methods for horse fly infestations include fly paper and fans.

Horse flies are bothered by smoke, so burning candles can also impel horse flies to leave a home in which they have taken up residence. However, these measures show at best marginal effectiveness at removing a horse fly infestation. Chemical Controls Pesticide applications can also be moderately successful at controlling horse fly populations.

Fog and "space spray" pesticide applications can kill horse flies on contact but populations often quickly return to the same treated area. An alternative method is to use pesticides containing Bacillus thuringiensis or methoprene that are designed to kill horse fly larvae. The key to success, however, is finding the larvae of the horse fly, often made difficult by the horse flies' proclivity to breed in secluded areas,

horse fly infestation? (by Reid [KS]) Posted on: Aug 3, 2012 10:29 AM

go to your local farm supply store and get a fly trap hang it out side and let it do ut's work. These episodes are self limiting at any rate.

horse fly infestation? (by Bill [TX]) Posted on: Aug 3, 2012 10:33 AM

Are you sure they are horse flies? Try googling "large slow moving flies".

May be cluster flies.

horse fly infestation? (by John [NJ]) Posted on: Aug 3, 2012 10:52 AM

Buy a venus fly trap?? Maybe a few hundred of them? Just kidding, but they do eat flies.

Regardless to what kind of fly it is, your question is how to get rid of them. Since they are already indoors, what would happen if you the window(s) and try to herd them out? What about closing everything then setting off several cans of insect killer? If you go that route, make sure all pilot lights are out or you can blow up the house. Second thought, scratch that idea.


New Jersey

horse fly infestation? (by Carolyn [MO]) Posted on: Aug 3, 2012 10:58 AM

I think what I had were cluster flies or house flies. I didn't have horse flies.

horse fly infestation? (by jawja [GA]) Posted on: Aug 3, 2012 12:33 PM

she said it was horse flies, She started spraying and they started dying - plus she swatted a lot and I told her to get fly paper.

the real ??, I guess, is figuring out if that's normal, if more will come, should I put a net or screen around the outside a/c unit (not sure that's how they came in, it's just where they settled once inside)? --76.17.xx.xx

horse fly infestation? (by Dan [WI]) Posted on: Aug 3, 2012 2:42 PM

The horse flies around us - on the lake - are enormous, compared to a regular little house fly. And they bite. I have to keep telling the kids to LET THEM LAND ON YOU so that you can kill them. Only good news with these big fellas is that they don't move real fast so they're easy to swat. If she's got the big ones, I'd do what I could to help her figure it out. Though, as someone said, it's probably a short term deal.

horse fly infestation? (by Reid [KS]) Posted on: Aug 3, 2012 8:55 PM

Every so often we get a swarm of big black flies like that in our ranch house they seem to all congregate in a window like they're trying to get out of the house . they keep at it till they all die in a couple of days . We've never been able to figure out where they came from or how they got in. We've speculated that maybe a mouse or something similar died under the house and they hatched from that ??? Any way they all die as mysteriously as they appeared. and it may be months or a year before we see something like them again.

horse fly infestation? (by Janet [KY]) Posted on: Aug 3, 2012 10:05 PM

Is she keeping a horse in the house they

are attracted to ? Just kidding. One sure

way to catch the horse flies is the way we did at the horse show barn I used to work at is those sticky fly strips if you can

get her to use them in the house. Buy at Lowe's, Home Depot or any farm supply store

T.S.C. ect...

Have a pest control company come

look at it and get their input on how they are getting in and why. Usually flies

will get really slugish in the air conditioning, so don't think they would

be attracted to the cold air.

horse fly infestation? (by JT [TX]) Posted on: Jan 5, 2014 12:21 PM

Air Conditioners create a biproduct of water and ammonia that causes a sour smell that attracts flies, bacteria and parasites. Flies and parasites feed on water and ammonia, mold and mildew, and they lay eggs in such places as this that will support the larvae through the growth stage. The best way to get rid of the infestation is to use fresh-scented, strong floral scented cleaning solutions, such as Lavender Fabulosa. Spray it into the AC, avoiding any electrical parts, saturate the filter, and continue to spray the areas in and around the AC on a regular basis. This will immediately kill the flies and the larvae. Make sure that the external AC water drainage is either emptied or able to flow away from the site, as the water that pools up outside the house will continue to attract flies and mosquitoes. One thing we know for sure about flies and parasites is that they hate flower essences and very clean-smelling products that are made from flowers, such as Lavender Fabulosa. This product is also safe and non-toxic, and is excellent for bathing animals, such as horses, cows, or dogs that frequently become infested with fleas, flies and other parasites. Hope this helps, best wishes, J

horse fly infestation? (by JT [TX]) Posted on: Jan 5, 2014 12:53 PM

Lavender Fabulosa is great for killing flies, but what most people don't know is that it is the most excellent product that you can use as a roach spray. Roaches cannot stand clean-scented floral products, and they choke on these fresh-scented cleaning solutions. Lavender Fabulosa kills roaches immediately on contact, and makes your house smell fresh, like lavender flowers, instead of the awful, nauseating and poisonous smell of roach spray. Lavender Fabulosa is completely non-toxic and safe to use around children and pets. It leaves a clean and fresh scent like air freshener. The very best method for getting rid of a roach infestation is to 1) remove any available food supplies from your pantry and shelves, 2) put out Glue Boards everywhere, 3) keep a spray bottle within reach and and continually spray the roaches with Lavender Fabulosa. Many of the roaches will get stuck, trapped and die on the Glue Boards, but there will be others that manage to avoid the bait, and will continue to thrive unless you spray every last one of them. Periodically replace the glue boards as needed, and continue to spray the Lavender Fabulosa cleaning solution on any remaining roaches that you see crawling. It helps to thoroughly clean and spray the solution behind shelves, dishwasher, stove, etc. Spray any visible roaches early in the morning on a regular basis, until they are all gone. Once you try Fabulosa, you will never want to use roach spray again.

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