The volume of questions submitted is much greater than we are able to publish on this page.

We do not send personal replies.
We have selected questions that we feel are of interest to most of our web site visitors.

Answers published on these pages are strictly the opinion of those submitting them.
Some pest management professionals may have different solutions or opinions.

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Mouse – I’ve recently had a mouse problem in my home — I’ve clogged any hole I can find with steel wool, and my landlord planted blocks of turquoise poison. In the first two days, the mice ate two whole blocks, then on the third day, part of a third. This was last Wed-Fri. We are no 1 week later, and in some rooms, despite me blocking the holes I can see, I believe there are still mice eating away at the blocks of poison I’ve dropped there (they move overnight, I have picture proof of it). How long does it take for these blocks of poison to kill mice? And how are they not leaving any pee or poop to trace, but still chewing poison? Montréal


It may take four to six days for rodents to die once they have ingested a lethal dose. Also, just because the bait blocks have moved doesn’t necessarily mean that it was done by mice.


Clothing Moths

Clothing Moths – My house is infested with clothing moths. The golden ones who lay white eggs. Not casing . I m allergic to them and have a chronic immune illness. T m looking for the most effective, quickest treatment . The companies i ve called r giving me conflicting info and r not open to much info sharing. There s a treatment know as bombing ( i had the name of chemical and lost it.) i was hoping to get that and buy moth eating wasps to use and to give to my adult children just in case. Can you please , please tell me the name of the chemical that is called bombing. It s a mist not a liquid. Can you also tell me if my plan is the best one . The companies seem only to want to book an inspection but have told me that not all companies have same product and won’t tell me the products they carry. I don t mind paying for an inspection but i do mind paying for one if the company doesn’t have all the products and experience in exterminating clothing moths . Meanwhile, i ve been sicker in last 3 yrs and bedridden. I discovered them in rolled up pure wool rug . It was crawling in them and have obviously been there for at least 2 yrs is my guess. I have quite a few good pictures if u want them. Any info would be helpful. Please answer. Thank you. Denise. Ontario.


First off, I suggest that they use pheromone-baited traps specific for clothes moths to certain that is what they really have (we often see small moths flitting about our house, but have never seen a true clothes moth). Click here and Click here for examples. Use of an aerosol spray in conjunction with other control measures may be useful, but check the label to be sure that clothes moths are among the pests the spray is supposed to control. Click here for a very detailed fact sheet on clothes moth control.



Will the Roach Motel trap silver fish as well. Too many of them in my apartment, washroom floor and lower kitchen cupboard? Thanks, Bob. Vancouver


The silverfish question. A Roach Motel will trap any small creature (including silverfish) that ventures onto its sticky surface, but there is no substance in them that would attract silverfish. Thus, although they can be quite useful in monitoring silverfish activity, they do not constitute an effective control measure.


Bird mite

We’ve had an on going problem with suspected bird mites for 4 years. We recently inspected the exterior of our home and found bird feathers in our attic. We had a company completely remove, disinfectant and reinstall new insulation in the area where the suspected bird nest was found in hopes that this would solve our mite problem. This happened on December 10th. It is now January 4th and these mites are still returning. When can I expect the mite population to properly dissipate. If not, what can I do to properly identify this pest? Toronto.


The persistent bird mite problem – have the mites been identified to species? Most bird mites cannot thrive/persist on human blood, but there are exceptions, such as Dermanyssus gallinae. If this is what they have, eradication can be quite difficult – see Click here for details.



Hi, We are moving out of a place with a massive cockroach infestation. How do we safely clean kitchen gadgets, especially larger ones (e.g. microwave, instant pot, that sort of stuff) to ensure we don’t take any unintended passengers with us to the new place, please? The roaches like to hide in dark places, so are pretty likely to be in the internal parts of the device where we can’t easily look. Thank you so much! North York


Weather may be your friend here – if you have a place where it would be safe to leave your appliances outdoors or in an unheated room in freezing temperatures, you may be able to kill any roaches present. German cockroaches cannot tolerate exposure to temperatures colder than 14 F (-10 C) for more than an hour, or 10 hours at temperatures below 45 F (7 C). If you feel you must clean, use a mild detergent in warm water to clean all surfaces, but be sure to read the appliance manuals for any precautions. Also, if you do not need to move immediately, you could try setting out a few roach bait stations or ‘roach motels’ to see if you detect any activity. 


Bed Bugs

Will putting the bed outside when it’s -0 or lower kill the bugs. Edmonton


I’m assuming that this is referring to bed bugs. If so, that depends on which temperature scale is being used. If it is Celsius (C), the answer is no. If it is Fahrenheit (F) the answer is yes. Click here for detailed information.



WASP NEST IN ROOF. Sorry long message A few months ago end of July early August I noticed wasps getting into a space under my roof I told my landlord thinking he’d get a professional to see to it but nope he only plugged it up him self before making sure their was no nest and way would they be dead now and if not what do I do I am hearing like a humming/buzzing in my ceiling going from one end of my trailer to the other I also had a bees nest in my crawl space under my trailer that he sprayed and I haven’t seen any since I was stung a few times by a wasp and also by a carpenter bee I just noticed the buzzing wen everyone got quite I haven’t been home all day so I am not sure wen it started but is the humming or buzzing I hear wasps if so how do I get ride of them I feel like my landlord just put a quick fix on the problem without actually getting to the base of the problem. Summerside, Prince Edward Island


Wasp infestation in trailer ceiling – First, make sure that the buzzing sound is coming from insects and not some other source, such as an electrical problem. If it is indeed coming from wasps, with your landlord’s permission, make an opening into the space above the ceiling from the outside of the trailer large enough to insert a nozzle from an aerosol spray (preferably a synthetic pyrethroid) labeled for homeowner use (check label for any fire hazard warning – if none, spray out the contents and seal up the opening). If the buzzing persists after this or if you cannot get permission to apply the spray, you may have to let cold winter weather take care of the job. Normally, only the queen survives the winter, and if she remains sealed up in that space, she will be unable to establish a new colony. Just be sure that you go over the trailer very carefully to be certain that any potential entry places have been covered/sealed.


Bird mites

I’ve had a terrible rat mite problem for 3 years. I’ve lost access to my bedroom and my study room. I’ve had pest control come in to leave rat traps and spray for rat mites. I haven’t seen a rat in over 2 years, but after 3 months of pest control spray, the mites keep returning. What am I doing wrong? Why do the rat mites keep returning? Toronto


If rats have indeed been eliminated from your premises, your problem may not be rat mites, as these cannot complete their life cycle on humans alone. I suggest inspecting the exterior of the home and immediate surroundings for bird nests. Bird mites often are mistaken for rat mites, and like rat mites, these will invade homes and feed on humans in the absence of their usual hosts.


Cluster Flies

I live in LaPeche, Qc. My south facing outside wall is covered with Cluster flies and they are starting to come in through the basement windows. How do I get rid of them? They are all over the walls and I can’t reach those high on the walls. Is there a kind of insecticide powder I can put along the bottom of the walls and balcony?


Click here for a Government of Canada pub on their control. Any flies that gain entry can be knocked down with an aerosol spray and vacuumed up.


Bed Bugs

Hello! This will be a little long but I’m hoping someone could help. Two weeks ago my niece and brother in law were visiting and they stayed over night two nights she brought a backpack but it was only in the house for 10 mins ish like twice and they slept on our couch. Well apparently they have bed bugs and now I’m concerned we have them as well as soon as they left I vacuumed my couch and took all the cushions off and I have been doing this every few days since then I have not saw any bugs or any casings/ blood stains/ poop on the couch could it be too soon to notice any thing or are we out of the woods at this point?? Please help!! Hamilton


Bed Bugs: It is indeed too soon to tell whether or not you have uninvited guests, and you appear to have taken reasonable precautions. I suggest that you peruse the following document on bed bugs, about the best I’ve seen on the subject: Click here 


Flea control

I have a dog, I flea treated him but my room mate had cats that she did not treat. The infestation is bad. The room mate has since left with the cats, but my house is still infested. I never had this problem before until her cats arrived. I’m overwhelmed and don’t know what to do. Also do not own a working vacuum. Hamilton, Ontario


You should consult with a licensed veterinarian for specific advice. Click here This site has some general recommendations that may be helpful.   I also highly recommend you obtain a good vacuum cleaner. 


Springtail control

Hi, Can you guys suggest an insecticide to get rid of springtails. I’ve had my home sprayed three times but with limited success. My home is not damp and is very clean. John H. CBS, Nefoundland


Chemical applications (usually pyrethroids) generally are not recommended for springtail control, as the effect is only temporary and applications usually must be repeated. Click here for some detailed suggestions. As you state that your home is not damp, there may be something else going on other than springtails, as they do require moist conditions in order to thrive.


Cockroach control

Hello, I hope you are well. I would like to know if cockroach spray/dust is safe for infants. I live in an apartment and they are spraying to get rid of cockroaches. I have a 1 month infant. They have said that we need to leave the apartment for 4 hours after they spray. I would like to know if it is safe for my infant to re-enter the apartment after 4 hours. Please let me know. Thanks. Mississauga, Ontario


It depends on the specific pesticide being applied. If it is a synthetic pyrethroid (commonly used in cockroach control), it probably would be prudent to wait a bit longer than four hours. A Canadian government web page on pesticide safety recommends waiting 12 hours unless specified otherwise on the pesticide label – Click here

‘Absolutely nuts’: Squirrels hid 200 walnuts under this SUV’s hood

‘Absolutely nuts’: Squirrels hid 200 walnuts under this SUV’s hood

Pharaoh ants

We have hundreds of tiny red ants coming out of a heat vent and baseboards. What can we use to get rid of them? Grande Prairie AB.


As you likely already know, ant control methods can be species-specific; what works well against one species may be completely ineffective against another one. That aside, if the ants are indeed tiny (less than 2 mm long), they may be Pharaoh ants, a species notoriously difficult to control. Click here for some advice 

Saskatoon spent $900K removing more than 619,430 kg of potentially damaging bird poop from Buckwold Bridge

Saskatoon spent $900K removing more than 619,430 kg of potentially damaging bird poop from Buckwold Bridge

Potato beetle control

We had a terrible infestation of potato bugs this year but could not find a product that would irradiate them. It seems the old products we used to buy are no longer available. Please tell me the name of a product that will work that I can buy for next year. East Selkirk.


Potato beetle control – I have had good success using a formulation containing Bacillus thuringiensis var. tenebrionis (Bt-t) bacteria. This targets the young larvae, so it should be applied every few days as soon as the eggs start to hatch. If you apply it too early, the bacteria won’t survive until the larvae emerge, so the treatment won’t work. Also, Bt-t is sensitive to UV rays, so you should spray late in the evening or on cloudy days. Also make sure that it won’t rain within 8 hours after you have sprayed. You can tell if the treatment is working because the larvae will turn black.


Cockroaches in potted plants

I have a pretty bad cockroach infestation and I am in the midst of carefully moving all of my things out of my apartment but I have concerns about my plants. I have bleached their pots, hosed down the plants including the roots, and repotted them. I just bought the diatomaceous earth to put down. I was wondering if there is anything else I can do. And if this is everything, how long do you think I should wait before I can safely bring them to the new apartment (they are outside of a friend’s house at the moment). Do you think they are safe right now? I’ve always kept them super dry in an effort to make them unappealing to fungus gnats, so I doubt they were appealing to begin with, but I am so concerned. Thank you so much. Montreal.


Cockroaches in potted plants – From the sound of what you already have done, the only additional step I can suggest is to make a visual examination of each pot (especially the bottom) as you pick it up to ensure there are no hitchhikers.


Rats in home

How do I get rid of rats in my home? Antigonish


Rats in home – You need to consult a professional as there is no good universal answer – each situation is unique. Search the Pestcontrolcanada pages (Click here) for a recommended company; this one appears to be the closest one to you: Click here

Importing Rodent Poison

“Importing Rodent Poison”. Can I bring mouse bait “RESOLVE” or “BAIT BLOCK”from the U.S. in to Canada?
The active ingredient is Diphacinone 0.005%. Thank you. Jacquie Aird. Vancouver, B.C., Canada


Importing pesticides into Canada: Residents of Canada may purchase and import, from the United States and only for their own use, products registered with a NAFTA label. You may transport the product on your own, work together with a group of growers with a designated driver, or hire a customs broker or carrier. (Click Here)

All pesticides imported into Canada must meet Canadian standards, i.e., be registered or scheduled under the Pest Control Products Act (PCPA), and bear the Canadian label. (Click here)

Starting April 18, 2018, you can no longer bring unregistered pesticides into Canada if they are not equivalent to those already registered in Canada for personal use in or around your home (i.e., Domestic Class products). An equivalent pesticide is one that has the same active ingredient in the same concentration.

In addition, you will no longer be allowed to purchase unregistered pesticides online and have them shipped to Canada. The purchaser of the product must bring it into Canada in person. (Click here)

Japanese beetles

Japanese beetles. These beetles are absolutely destroying our roses, hibiscus, hydrangea and red maple. I am so very upset. We have the traps and have sprayed what is best in their management? should I have the lawn treated for larvae and if so what time of year. Thank you. Jill. Welland Ontario.


As far as Japanese beetle control is concerned, I do not recommend traps unless your property is large enough so that you can place the traps far away from any vegetation that you want to protect (or better yet, persuade your neighbours to put some on their property!).

There are several formulations effective against the grubs (milky spore – a fungus, BTI – a bacterium, and nematodes), but these will only work on the area where applied; there is nothing to prevent adult beetles emerging from untreated areas near you to invade your property.

Click here for the best advice on Japanese beetle control (including methods, materials, and timing of applications) in your area that I have been able to find.

German cockroaches

Do you know how or where I can purchase insect growth regulator in Canada. My son has purchased a house that ended up having German roaches. We have contacted a local exterminator who for $1000.00 will take care of the problem but only guaranteed for 45 days. Sounds like they will kill everything alive but the next generation. Regina.


I have found these IGRs recommended for German cockroaches:

Gentrol Point Source (Zoecon) – (this can be shipped to Canada)

Vendetta Plus Cockroach Gel Bait (4tubes) Roach Bait & I GR Roach Killer Paste – (I do not know if this can be shipped to Canada)

In the event that you cannot obtain an IGR labeled for homeowner use, you might try this bait formulation which is supposed to remain effective for up to a year – Click here or this one – Click here

Cockroach infestation

Hello, Is there anyway to control a cockroach infestation in canada? It seems like there are no bait stations or boric acid dusts available in Canada. Thanks, Andrew. Saskatoon, SK.


Cockroaches are always difficult to control. Strategies to control vary depending if it is an multi unit building or an individual house. 

There are boric acid dusts available but because of insect resistance and bait shyness they are not very effective. A multi prong approach is usually used composed of both chemical (baits and sprays) and non chemical control (heat, vacuuming, sticky insect traps, etc). 

Good sanitation is key as cockroaches thrive in unclean environment. Kitchen grease and food crumbs behind stoves and fridges can provide food for long period of time. 

It is always best to contact a pest control professional, who should work with the property management to work out a good solution. 

Black wasps

For 3 years in a row we have been finding black wasps in our house. Every summer 3 – 5 slowly come out of who knows where. Then we don’t see them again until the following year. Lucky my cats find them before my kids do.
The question is how do I find where they are coming from? Why do they keep coming back? Tecumseh


Wasps build new nests every year. The likelihood of new nests close to previous nests is high as the wasps go to where they think it’s a safe place to build. Seeing other nests in the vicinity makes that decision easier. 

I would suggest doing a walk through along the external perimeter of the house on a nice sunny day and observe where the wasps are entering the house. They need to access a void in order to build. Once located please contact a professional to treat. 

The wasps you’re seeing are probably ones that have lost their way heading out of the nest and then ending up on the inside. They will normally be slow moving as they have depleted their energy and gather by the windows, following the light in order to get out. 

Vacuum them off as spraying is a waste and detrimental to ones health on the inside. 

Spiders and pill bugs

Hi there, we have a lot of shrubbery in the yard and experience a lot of spiders as well as pull bugs. We experience spiders inside the house as well. Looking for a suggestion and quote. Thank you. Surrey BC.

Spider population build up over time, especially if no control measures are taken around houses. A high spider population also tells one that there is a large insect population as spiders feed on insects.
Recommend using a permethrin based spray around the external perimeter of the house and along the window frames and along the eaves.

On the inside of the house, I would suggest insect sticky or monitoring boards at various locations all over the house along the baseboards. The boards should be replaced every week until the population is under control.

Spraying along the inside of house ONLY if the infestation is really heavy.

Pill bugs feed on decaying vegetation especially around the external perimeter of the house where grass clippings and other vegetations tends to collect. Once this population builds up, pill or sow bugs then tend to enter the house through cracks and crevices. Although they do not pose much of a health hazard – they are considered a nuisance.

The external perimeter spraying with a permethrin based insecticide will help bring down the sow bug population. In the inside of the house – use of only insect sticky boards to control the sow bugs.
The insect sticky boards will be effective for both the spiders and sow bugs.

Mice Treatment

Hi!! I live in a downstairs condo. My backyard has a small wood deck with a small gap between it and the ground. I believe there’s a family of rats/mice living under there. I see them going in and out getting leaves and twigs… I suppose they are making a nest. How should I get rid of them? I live in saint Laurent, Quebec.
Thank you so much!

Response to Follow Shortly

Bedbug query

I have been cleaning a friends apartment and discover after several visits in and out, that his place is infested with bed bugs? My concern is did I bring them home on my cloths? I didn’t sit down on any anything but I did remove his bed sheets etc because they were soiled. What should I do?

The bedbug query – Unless you physically removed some of the items from the infested premises and placed them in your vehicle or took them home with you, there is very little risk that you inadvertently brought bed bugs into your home. If you did take the soiled bed sheets home with you and they were not immediately laundered, you need to be on the lookout for signs of infestation. In addition to the information available on the Pestcontrolcanada pages, you might check out the publication at Click here for more recommendations.

Birch Leafminer

How do find a supplier of parasitic wasps for birchleaf miner control? From Mississauga, Ontario

The Birch leafminer query – Of the two species of parasitic wasps (Lathrolestes nigricollis and Grypocentrus albipes) introduced for control of the birch leafminer, only L. nigricollis has become widely established. At the level of individual release sites, L. nigricollis has lowered pest density from 50 to <5% of first generation leaves being mined. (Click here.) These wasps were introduced into parts of Quebec and Newfoundland in the 1960s and 1970s and parts of Alberta in the 1990s; Click here for full details. I do not believe that these wasps can be provided to individual homeowners.

Information on Tremidor Insecticide

What is the reasoning behind a consumer, like myself, not being able to by or ship to Canada Termidor insecticide? Please let me know this because I can’t find an explanation. I’m assuming Canada’s pest control would have a reasonable explanation for something like this.

I have been unable to determine if Termador (Fipronil) is registered in Canada. I did find the following at Click here and at here

Bats in Sakatchewan

When will big and little brown bats in my region, central-northern sakatchewan/manitoba give birth?

Both big and little brown bats give birth in late spring- early summer (usually May-July).


Velvet Mites in New Brunswick

From Dunlop, New Brunswick – Is it normal to have velvet mites in New Brunswick?

These mites (family Trombidiidae) are widely distributed in Canada, including New Brunswick.

Locating Insect entry

From Noelville:  Is there anyway to find out where insects are getting into the house. Every year we are infested with house flies, ladybugs and mosquitoes. They have to be getting in somewhere. Can a Pest Control company find out how they are getting in so we can can fix it?

Short of hermetically sealing one’s home, it is nearly impossible to keep all uninvited ‘guests’ from dropping in for a visit.  You can minimize their intrusions by ensuring that all doors and windows fit tightly and if opened for ventilation, have tight-fitting screens. Any gaps between their frames and the house structure should be filled, as well as any cracks in the foundation. If any pipes, vents (such as from a clothes dryer), etc. penetrate a wall, any gaps around those should be filled with caulking or expandable foam.

Ant Problem

From Surrey; I had ants coming into my suite and I used the borax recipe online, put some cotton swabs along their trail. In a few hours there were hundreds of them soldiering back and forth along the same trail, truly gross! But anyway, within 6-7 hrs they were all gone except for a few lingering around. I cleaned everything up but I still have a few hanging around and I don’t know where they’re coming from and why they haven’t gone home. I put out a few more cotton balls with the borax solution and they’re not attracted to it. I’m killing them one by one but I want to solve the problem and make sure they’re gone for good. Can you tell me why there’s still some hanging around and suggest what I can do? Thank you so much!

The ant problem – I’m assuming that the bait being use is one of the borax/sugar solutions commonly encountered on the internet. Not all ants are attracted to sugar and other sweets, some seek protein sources instead. That being the case, I suggest that a peanut butter/borax mixture be tried as well – Click here for details.

The Bee Problem

From Sturgeon County Alberta: So, I have a big concrete step that is starting to separate and now have cracks and Bees under there. I am sure it’s a nest/hive. I can’t see it, but I know there is an issue. We have children with allergies to bees. What should I do? I was thinking of filling the cracks with a spray foam, not sure if this will work? Any ideas?

The bee problem – The expanding foam should work if all crevices/holes that allow access to the space under the slab are filled. However, I really would like to see an image or two of the bees in question, if that would be at all possible. Please Click here to find out how to send in your photos.

South African Bark beetle

From Johannesburg South Africa: Where can I get predators of Checker Beetle to eat Bark Beetle or what can I spray for Bark Beetle?

The use of checkered beetles (Cleridae) for bark beetle control may not be particularly effective, and I will have to do some digging to see if there is any commercial source for them as control agents (I’m doubtful at this point). Also, control measures will depend to some degree on the particular species of bark beetle involved. For some, the only recommendation is the cutting down and destruction of infested trees.

Miniature moths in Northern Ontario

From Ramore Ontario: On Sept 19,2017, in Ramore Ontario, P0K 1R0 the skies were filled with millions of miniature moths. If you would inhale you were certain to swallow a few. Yes there were lots! They would land on us. When we went into the house they would come in. They survived the winter indoors and outdoors also. Are they clothes eating moths, are they destructive? They are about ¼ inch long (or less), 1/8 inch long when wings are closed. They are a silver color with darker edging. As soon as you touch them they turn to dust/powdery smudge.

These do not look like clothes moths, but I hesitate to attempt a specific i.d. as tiny moths such as these are for the most part, very difficult to identify; several families often are lumped together under the rubric “microlepidoptera.” see Family Elachistidae (Grass Miner Moths) | Butterflies and Moths of North America for an example.

Spring Time Flies

From Langham Sask: What are the common springtime flies in our house? Every time this season, these flies are the first for a few weeks and then we do not see them until same time next year. Our house is clean, it is -5C outside, some are outside and some in our house. Where do they hid in the house for 10 months to appear every March?
Thank you for the reply.

My best guess would be that these most likely are cluster flies. These are not filth flies like house flies; their larvae feed on earthworms. These flies usually enter buildings or other shelter during the autumn, and then emerge from their hiding places with the return of warm weather in the spring. Click here for more detailed information.

Unknown Worm

From Edmonton, Alberta: I was away for two weeks and when I came home noticed two tiny worm like bugs on my white bed sheet, and after removing them I found a third smaller worm. I looked up carpet beetle larvae and they did not match the images (they lacked rings and instead were a uniform dark brown/rust color). They moved like an injured inch worm. I squished them in toilet paper and threw them in the toilet before I thought to take a picture. I’m not from Alberta so not familiar with what is and what is not normal for this time of year. Any ideas?

Silverfish Advice

From Camrose: I have had a silverfish infestation in my apartment since the day I moved in 3 months ago. The exterminators have been here twice and I have sprayed Raid in between times. I continue finding them.

My question, are the little white pieces of fuzz that are the same shape as they are that I am picking up off of the carpet the young ones?? I have been picking up these little pieces of fuzz with my fingers thinking it was odd shaped lint and why would lint always look about the same. PLEASE PLEASE HELP. I am an old woman and have not had to deal with this before.

Grain Weevil

How to get rid of grain weevil, found them near dry beans ? They are about 3 mm long, found some live and dead ones. Thank you, waiting for your advice. Anita

I suggest placing any beans or other seeds that are infested or suspected to be infested in a deep freezer (at least -18°C) for a week and then discard them. In the future, keep all dry food products that are susceptible to insect infestation either in a refrigerator or in sealable plastic, glass, or metal containers.

Poison to kill raccoons

Hi I had a question about pesticides available for farmers. We have a land in Northern Ontario and was wondering if Cyanide or other strong poisons can be available to farmers to get rid of some raccoons in our land. Thank you for your time. Kian.

Poisoning wildlife is a dangerous control method that is illegal in many parts of Canada. Killing non target animals and secondary predator poisoning could result in serious legal problems. Poisoning animals is very cruel and unacceptable by most organizations like the SPCA and the Canadian Wildlife Federation. Please, please, please do not use poison to solve your problem.
More information:

clothes moth

How to get rid of clothes moths


Hi, this is Michelle from just north of Grande Prairie, Alberta. We have been fighting these moths from late September and on. There are holes in clothes (including the kids’ clothes) and I have found larva on knit socks and in balls of wool yarn.  The larva are brown with little hairs coming out one side.   Can you tell me what this is and what I can expect their eggs and cocoons to look like? How can I eradicate them?  Thanks, Michelle

Adult clothes moths lay almost invisible eggs on wool, fur, silk and feathers and other items of animal origin. The eggs develop into larva that feed on the items and cause damage. The adult moths do not feed. You should empty your closets and areas infested. Laundering will kill the larva but many items cannot be washed in hot water and dried. Freezing will slow down the damage but will probably not kill the eggs and larva. If you don’t hire a professional, spraying pesticides is not a simple solution. Read the tips we have published here:

Get rid of boxelder bugs

4641  How do you get rid of Boxelder bugs? How much would it cost to get rid of them? HELP!!

Boxelder bugs can be a real nuisance but fortunately they are harmless to humans and cause no damage to structures. Getting rid of them can be almost impossible unless the host boxelder tree is removed.  See this page for more information on how to deal with the problem: .

Cluster fly pesticides

Can I bring Lamdastar ultra cap9.7 and / or Cypermethrin in from the US to spray these cluster flies with that have taken over my mobile home I use for a hunt camp and getaway.I am in Ontario close to US border so would just drive down and pick up if it is legal to do so..Can not get an answer at your 800 number..Harry

Health Canada:

“All pesticides imported into Canada must meet Canadian standards, i.e., be regulated under the Pest Control Products Act (PCPA), and bear the Canadian label.”

There are a number of products available in Canada that will kill cluster flies. Basic aerosol sprays with the active ingredient Pyrethrum will work if they come in contact with the flies. Many professionals use a fogger to penetrate all areas in attics with pyrethrum.  If numerous flies are entering the living areas of the home, attempt to locate the openings where the insects gain access. Typically, flies will emerge from cracks under or behind baseboards, around window and door trim, and around exhaust fans or lights in ceilings. Seal these openings with caulk or other suitable materials to prevent the insects from crawling out.

4640 Carpenter ants in condominium

4640  Good day!   I live in a condominium building partly covered with wood. A very knowledgeable handyman came to fix the bottom framework of one window because it was cracked. We discovered the problem of big black ants eating the wood under my window. For a whole day, we sprayed with ant killer foam Ant Bgon Max. They were killed but of course the problem has not been solved. The handyman diagnostic was : 1. The drywall is mushy, wet and soft (decomposed) 2. The fiberglass insulation it was moist, and brown colour (compare it with fiberglass insulation on the right side of window where the frame is removed). 3. The wood (both the frame and bottom part of window is mushy and with a little bit nail pressure can be removed) Most important is that the source of water entering to that place of your window should be addressed first and be fixed. I am still waiting from the property management to fix the problem. Winter will come soon ! Any advice from your part would help a lot. You will understand I don’t want my apartment to be fumigated except if you did it locally for the window. However it would not solve the problem of the cause of the infiltration of water being fixed. I since heard a second apartment in our building had also the same problem. 1. Would you recommend the whole building to be fumigated ? 2. If not, what are the consequences for the future of our building ? Many thanks, Marie France  Toffin

You have described a typical carpenter ant problem.   You should have an experienced pest professional inspect the building and treat all infected areas.  In most cases the solution is to inject a pesticide into the suspected nests from the outside.  Nests in window areas are often in the header (above the window trim) as well as the side framing and sill.  Of course the water problem should be repaired after the inspection and before the ant treatment. The professional should speak to the building manager.

Get rid of fleas.

flea1What is the best way to get rid of fleas if no pets are in the home no more ?

Vacuum, vacuum, vacuum thoroughly, daily for 2 weeks.   For more tips visit:

Bed Bug

How to get rid of bed bugs.

We have an infestation of bed bugs. How do we get rid of them? We have removed mattress and box spring out of our son’s room. Now what?
The biggest challenge in dealing with bed bugs is finding them. They can hide in numerous places besides beds.  Inexperienced home owners often spend more money trying unsuccessfully to eradicate bed bugs than it would cost to hire a pest professional that guarantees success. Read more.


Drain Flies in shower

In one of my washrooms we have flies that keep flying out from the drain after we take a shower I have tried bicarbonate soda and white vinegar for five days and nothing changed. Please advise what can I do this is a nuisance and we are unable to use the shower.

Drain flies (also known as humpback flies and Phorid flies) lay eggs in drains. The eggs hatch and the larva feed on scum in the pipes.   To eliminate them, the entire interior of the pipe must be treated with a foaming insecticide.  This will contact all the eggs and larva.  It is important to never let the water in the p-trap evaporate and dry out.  A well equipped pest professional will have a foaming machine and the right product to take care of this.