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Is Untrasonic Electronic Pest Control, Effective?
tedgyz asks: "I have declared war on the pests in my house. I am tired of hearing the scurrying of mice and squirrels in my walls. Worse - I am tired of the nests littered with droppings buried in boxes in the attic. I have used standard traps, and although successful, it seems that new rodents or more than happy to replace the ones I've killed. Are ultrasonic deterrents effective?"
"I've searched the web, but I can only find marketing material from manufacturers and distributors. I'm looking for cold, hard facts.
- Do ultrasonic deterrents really keep rodents out of your house?
- What is the range?
- Do they last, or do the rodents eventually return?
- Are they truly innocuous to dogs and cats?
- How do you measure success?"
What is this "Untrasonic" technology you speak of? Some kind of super-sonic, but not quite super-sonic frequency perhaps?
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I do know that those pest repellers can drive me out of a room pretty quickly.
Whenever I get near one I get a horrible headache after a few seconds that just keeps getting worse and worse until I flee, or can disable the damned device.
My advice would be to avoid them. Never let one into your house or workplace, destroy any you find, and try to drive the companies that make them out of business, sterilize the ground on which the factories that built them once stood (after your burn the buildings, and before you salt the ashes), and force the people who invented/built them into a lonely exile in Antarctica.
Of course, I might be slightly biased.
Who knows? Probably not. I vaguely remember a Choice magazine article on them showing no statistically provable difference. Wait, maybe that was the EMP type ones.
Some of those ads are a bit worrying - "Drive pests away by creating a unbearable ultrasonic field plus an annoying EMP in your house wiring!"
I think that having anything in your house that causes discomfort to animals that are *still* genetically fairly close to humans is probably a bad thing. Doubly so for the EMP ones. After all, a lot of human trials start out on the humble lab rat.
I wouldn't be convinced until there was a long term and scientifically rigorous study on continuous exposure to humans (oh, and the pests you're trying to drive off too!).
You are in a twisty maze of processor lines, all alike.
There is a lot of hype here.
A couple of years ago I moved into a house in the country, which was full of mice. The previous occupants had laid down traps and poison, to no avail.
Shortly after moving in we got ourselves two kittens, just weaned. By the time they were six months old there were no more mice! Any new would-be immigrants get dealt with by the time they reach the garden. We are also free from rats, moles, voles, shrews and anything else that moves. Pretty much as you would expect!
The secret is not to overfeed them so they stay healthy, agile and a little bit hungry most of the time.
They're also very nice cats as it happens, very loyal, affectionate and playful. They're always goofing around and making us laugh. It feels like they're part of the family.
They do work in certain cases -- I have two in my house (kitchen and computer room), and they have stopped my mouse problem.
Rooms with odd geometry or many sound-absorbing obstructions don't work very well. A good rule of thumb is that these will only protect areas an IR remote would reach from the outlet they're plugged into -- in other words, line-of-sight.
One word of advice -- don't go cheap! The cheap ones audibly click, and give sensitive people headaches. The good ones are unnoticable to pets and humans.
As for range, it varies -- but usually only one room per device. See labeling!
We may not imagine how our lives could be more frustrating and complex—but Congress can. – Cullen Hightower
I used to live on the 2nd floor up in an old building. Some builders came and started ripping apart the basement of the building: pretty soon we had mice running around our flat, scared off from the lower levels.
I bought a pair of Ultrasonic repellers for about £80, or USD$120. At the same time I put some poison down, which certainly thinned the numbers out.
But I think it was the Ultrasonic babies that kept them away; I don't think you can rely on them to rid yourself of the pests, but they are definitely effective at stopping them coming back, or in for the first time.
You have to place them somewhere sensible with line of sight to most of the area you want to cover. This is a bit of a pain, but worth it.
I'd recommend them. But get good ones.
Just keep your stereo at full blast 24/7, looping through some death metal mp3's. Should keep all pests away, neighbours and spouses included.
-Filik.
You need to do more than kill them, or drive them out. Think of it is a security problem, and patch the holes. If you keep killing them, and they keep coming back, there are problems. For them to be living in your residence a few things have to available to them; easy entrance, food, water, and shelter. The last you can't do anything about, short of tearing / burning down your place. But you can patch holes, clean the attic, fix leaking pipes, remove pond from the back yard, etc. Overall, just make it un-appealing for the critters to live there.
Have you tried any professional services?
IMO, the sonic thing is a total scam. Many of my old customers tried that, and eventually gave up. (I got out of the pest control business in '97 or so)
Actually, all the poster would need is the cat's urine. The smell of cat urine is enough to drive away most/all rodents.
Best of all, the poster wouldn't have to put up with said cat clawing furniture, said cat's hair covering everything, and said cat's litter box or vet bills.
Then again, I don't know of any way to get cat urine without actually owning a cat, so..
Cruising the internet on my TI-99/4A @ a whopping 300 baud!
We've seen mice and roaches in our apartment so I bought a small ultrasonic thingie for the kitchen.
The mice appear to have fled the area. We caught a mousie in the front room (glue trap), but we haven't seen any mice in the back of the house. If you can stand finding a dead mouse now and then, I recommend glue traps.
The roaches don't seem to mind the ultrasonic at all.
Surprisingly, Chrysantemum seeds work against roaches. We set some out a while back and the roaches dissapeared. Apparently there are more effective breeds (of seeds, not roaches), so do some research.
My father is a blogger.
You can't just kill the pests, you have to kill them and send a message to the others. I suggest making little crosses and crucifying the mice and leaving those aroung the attic. (Hint, use staples.) Also leaving squirrel heads on small metal pikes seems effective. Keeps other people from snooping around in your attic as well.
Get off my lawn.
Holy hell.
You mean I could have been harvesting that stuff and selling it on ebay all this time, instead of spending money on cat litter?
Now all I need to figure out how to do is get the cat to piss in a cup. He might freak out and think it was a drug test though.
I've had enough abrasive sigs. Kittens are cute and fuzzy.
There were some moles in my yard, so I bought some of the vibrating stakes that are supposed to repell them. And a load of D cell batteries to put in them. I never did get around to installing them, but the moles are gone now.
By the way, does anyone know of any other devices that use D cells these days? I have a bunch in my junk drawer...
It's a known fact that some animals (especially smaller ones) can hear a much wider frequency range than humans can.
"genetically similar" means nothing - A few kilohertz can make a lot of difference.
But one has to be careful not to get TOO close to the human hearing range, as within 3-4 kHz of the human hearing range, it causes US discomfort. A bit above that and it won't cause pain for humans at all, but will sound like an unholy shriek to a small animal.
Note: I'm talking about the ultrasonic-only ones. And having multiple small units scattered around is probably better for our ears than one large super-loud unit, as one superloud unit might still have enough SPL to damage someone's ears even though we can't hear it. (Although it helps that the ear won't have any resonances at those frequencies - This is why smaller animals can hear higher freqs, smaller ear canals = higher resonant freqs.)
retrorocket.o not found, launch anyway?
Do ultrasonic deterrents really keep rodents out
of your house?
No. Not at all. What they do is make the environment less attractive to the rodents. If you are in a duplex, the rodents run next door. If you own your own house, they get used to it (how long did it take you to ignore the traffic/train/plane while you are sleeping?)
What is the range?
See above "no" answer.
Do they last, or do the rodents eventually return?
See above answer.
Are they truly innocuous to dogs and cats?
The mouse chirpers bug the crap out of my dog. On a more important note, they bug the crap out of me. (my wife would say "insert obvioius pest joke here") The mosquito ones are the worst, but I can definitely hear all of the "pest control" ultrasonic gizmos. Maybe I'm just picking up on a weird harmonic, but they're more annoying than the high pitched whine of older TVs, to me.
If TVs and flourescent lights don't bother you, then this won't bother you, but be assured that your pets *will* notice.
How do you measure success?"
Decrease in mouse turds always worked for me.
If you're seriously interested in getting rid of mice, get a cat. Get a female cat (spayed!) from the humane society. Keep it outside if you don't like cats (they like to roam, anyway).
Best rodent control are mousers. Female cats make the best mousers.
Chances are that you could make a pretty decent ultrasonic repeller for a fraction of the price of commercial ones. Look around at some electronics sites, but the basics would be:
555 timer - Set it to free-run somewhere in the 26-30 kHz range. You might have to experiment a bit. It will probably be most effective 1-2 kHz over the highest frequency that causes you discomfort.
Audio amplifier - LM386 audio amps are cheap and easy to use. They're a high-power op-amp for all practical purposes.
The silicon and additional passives would cost you under $10 most likely, which leaves you $20-30 for a speaker with good ultrasonic response and still be a fraction of the price of these $80-120 commerical units people talk about.
Bonus is that you can retune it down a few kHz if you want to intentionally piss someone off. This is more effective if you add circuitry that sweeps the frequency over a few kHz. (This might hold true for animals too.)
retrorocket.o not found, launch anyway?
Just look at where you can get these things. There is huge money in installation of these devices in commercial establishments if the cost would justify the results. Yet, the only ones selling these things are the people who don't have to answer to the client month after month about why it isn't working.
Take it into a pet store, and see if the rodents freak. Cruel, but damnit, we need data.
All Troll + "offtopic" mods are meta moderated as "Unfair", because you abused the system.
...so they won't work on the critters in the walls.
The sound frequency is damped right out of existence upon hitting something, so using them in a space with lots of corners, furniture, or sonic shadows will be fruitless. Though, if you knew they were all entering your house through a certain cleared-out area, it might be worth flooding that space with them. Otherwise, I think it will cost a fortune, have limited success, and, based on other another poster's comment, may give you headaches or brain damage.
Personally, having kids prevented me from putting out too many traps, and chemicals were out of the question.
First of all, you have to get rid of their entry points, clog up their traffic routes in the walls, and trap the ones that start walking through your living room as a result. I live in an old bungalow, and was surprised to find that behind my baseboards, there was enough room to roll a baseball through (just like in the cartoons, they had set up a little world back there).
The most effective thing that worked for me (outside of getting a cat) was to pull up the baseboard molding around a few rooms (especially the kitchen), and fill it with 'expanding foam spray.' The mouse superhighway was gone. I caught a couple with traps, but they never came back. It also made my house a bit less drafty. I filled in any space where I thought they may be able to enter the house, either with foam or ultra-fine steel wool (mice won't try to chew through it).
Low tech, but effective. It cost me about $10 total, compared to $5-$25 for each of the ultrasonic devices.
I have declared war on the pests in my house.
No, no, you've got it all wrong. Don't say you're declaring war. Say that you're "liberating" them from their miserable existance scurring around in the walls and such. Then you're morally justified in bombing the holy beejesus out of them and they'll be eternally grateful just like the Iraqis.
Oh wait...
GMD
watch this
I have friends who bought a "vacation" home in Death Valley, CA [actually it's just a party house for a bunch of vector ecologists and related people] and it used to be overrun with rodents. Nervous about Hantavirus see here [note also has a few good links to help you out on your quest] they tried one out, one of the middle priced ones I believe, and it works great. One of their neighbors doesn't use one and he gets drowned rats and mice in his toilet all the time. As one of the above posts mentions eliminate the point of entry and you are halfway there.
-- Some days you're the dog; some days you're the hydrant.
As reenactors, we're out in the summer most weekends. A Civil War doctor reenactor friend of mine swears by the lozenge-shaped mosquito repellers sold at Walgreens -- They're supposed to mimic the sound of dragon-fly's wingbeat noise. Last year, using this, he had remarkably few skeeter bites. He DID, however, have some lonely dragon flies around his tent occasionally...
No, they don't work on insects (at least, nobody has been able to get them to work in independant testing labs). Apparently, this is due to the fact that mosquitoes are nearly deaf.
You can buy expensive CO2 generator/electrostatic killers; they work to a certain extent. By that I mean they attract mosquitoes, they kill mosquitoes, but they don't kill as many as they attract. Net result: more mosquitoes than you had before.
You can buy bug zappers. They work as well, but apparently there are serious health hazards associated with haveing microscopic bits of blown up insects landing in your food. "Zapper" is an interesting description; but the correct term is more like "vaporizing".
You can use Citronella candles, and citronella bug sprays. They work, but not so well; some lose effectiveness after as little as 15 minutes, some as long as 2 hours.
You can use Avon Skin-so-soft, which works for 15 minutes. Apparently mosquitoes hate slick skin creams of all kinds, so plain-jane lotions work as well and as long.
DEET is the only thing that actually deals with flying insects over a decent period of time. Currently the recommendation is to use no stronger than 30% DEET formulas.
Other, "envoiornmentally friendly" spray/apply lotions work, but for short periods of time. Since most should not be used more than twice a day, that doesn't help if you're really outdoors.
Mosquito coils work because they contain a pesticide. You decide if that's what you want your kids breathing.
Bug jackets work; remember that if the screen touches your skin they can bit through it.
What really works is getting rid of the breeding sites. A single coke can with an inch of rainwater can grow about ten thousand mosquitoes; you have your work cut out for you, but it does make a real difference. If you have a pond, put fish in it. They eat the larvae.
There are about 90 kinds of North American mosquitoes, and they have specific habitat preferences. Thus, in the rain, you get the kind that like humidity and lower temps. At evening, you get the kind that like the sun going down and the temps falling a bit. So, chances are that the kind that give you the reaction will either die off sometime during the season, or you're having consistent weather they like, but getting at the breeding sites is your true best option.
You may well be having an allergic reaction of some kind as well; since allergies are cumulative (ie the reaction doesn't happen until you get some personally significant number of bites, a threshold you may have exceeded). I would use DEET but it's up to you.
I don't know where this came from, but I got it from my parents... Take a five gallon bucket, and cut it down about halfway, and discard the top. Make a ramp out of a piece of wood, such that a mouse could run up it. Cut two notches on opposite sides of the bucket, so that a wire will can lay accross the width of the bucket. Put a pop or beer can on the wire, and coat it with peanut butter. The last step is to fill the trap with antifreeze. The antifreeze will pickle any rodents that happen to jump on in, reducing the frequency of neccasary cleanings.
I tried to draw a diagram, but it was aborted by the lameness filter.
Nerd rage is the funniest rage.
The coleman is a two part system, one unit is suposed to repell, and the other attracts, hopefully away from the area you're in. Mosquitoes are strongly attracted to bodyheat and carbon dioxide.
mosquites repellants
DEET (insect repellent)
Avon Skin-so-Soft work for some people (works for me for 2 hrs) but not for others
lemony smelling stuff
citronaella, lemon grass, try just sparying the area with plain old lemon juice.
some people swear but oraly takeing garlic and yeast tablets, I think they may have some idiocyncratic body chemistry that makes this work cause it doen't for me.
some people are so attractive to mosquitoes, that nothing helps, my wife is like this, I normaly just stand beside her and never get bite, while she gets eaten alive.
Indiginous, mosquitoes feed around dawn and dusk and only to develope their eggs, the asian tiger mosquitoes are ravenous 24/7 and very difficult to repell.
Apocalypse Cancelled, Sorry, No Ticket Refunds
Take all those old Linux cd's you've burned over the past 9 years and hang them from your eves. They spin in the breeze and the bright reflections scare off the birds in short order. The function is very good. The form is perhaps less apealing.
-=-=-=-=- osjedi uses Debian GNU/Linux. -=-=-=-=-
The best option in your situation might be to talk up the CO2 attractor/bug killer machines. They can cost up to $600, maybe more. But, if you know a gadget-crazy neighbor, preferrably a lot or two away, get him (somehow) to buy one. It will attract mosquitoes from your yard to his.
;-) Nature will supply the topic (a few mosquitoes). Say you heard they work great.
Perhaps a friendly neighborhood barbeque, some free liquor, and a catalog from The Sharper Image on the table might get the conversation in the right direction
There were no Walgreens during the civil war.