Cockroach Control for Canadian Homes — Bait First, Spray Last

Bait, not spray. The plan our guides lay out is to identify the species, cut off food and water overnight, place enclosed bait stations tight against the wall edges and corners where roaches travel, and lay glue-board monitors so you can measure progress instead of guessing. A roach that feeds on the slow-acting bait crawls back to the harbourage and dies, and the University of Kentucky's cockroach fact sheet explains that roaches which never fed on it can die too, after taking in traces left in the droppings of those that did. The same fact sheet says a substantial reduction should be apparent within a few weeks. Do not stop there: Rutgers University's German cockroach fact sheet says to keep inspecting and re-treating every two to four weeks until no cockroaches are seen or caught on sticky traps for at least a month. Every bait is a pesticide, so check the label for a Canadian PCP registration number before you buy, and replace bait as the label directs.

Three reasons: reach, repellency and contamination. A contact spray kills only the roaches it wets, and the University of Kentucky's cockroach fact sheet notes that cockroaches spend very little time on exposed surfaces such as walls, floors and countertops. Rutgers University's German cockroach fact sheet says most of the active ingredients in retail sprays and aerosols are pyrethroids, that pyrethroids are repellent to cockroaches, and that a spray treatment may push them into neighbouring units. Kentucky also warns that spraying around bait placements could discourage roaches from taking the bait, which would undercut the method most likely to work. Rutgers ranks the options the same way: bait is the most effective formulation, and sprays are less effective because of resistance, repellency or both. A spray still has a few narrow jobs, and the spray guide in this cluster sets out what they are.

Treat any listing with caution. Advion is an indoxacarb gel bait registered with the US EPA, and the University of Kentucky lists it among the professional versions of cockroach bait sold online. A search of Health Canada's pesticide label database in October 2026 returned no registered product under the Advion name, and Health Canada says all pesticides used in Canada must be registered under the Pest Control Products Act. Health Canada also states that it is a violation of that Act to buy and use unregistered pesticides, and that a registered product shows its number on the label in a form such as "Reg. No. 00000 P.C.P. Act". If the unit in the listing photos carries no such number, that is your answer. The consumer route in Canada is a domestic-class bait in an enclosed station, which works on the same slow-acting principle. Our Advion guide covers the full picture.

Not as a loose dust. Health Canada's re-evaluation of boron pesticides (decision RVD2016-01) cancelled domestic dust and granular products, along with solutions that are not in sealed bait stations or localized gel treatments. Sale of those products has been prohibited since July 22, 2018, and Health Canada told households to stop using them as of July 22, 2019. The domestic formats that remain are bait stations and gel formulations, whose labels say to use them only in areas inaccessible to children and pets. American extension fact sheets, including those from Rutgers and the University of Kentucky, still describe using boric acid dust, and that step does not carry over. For a dust in dry, hidden voids, our spray guide points to a registered diatomaceous earth product instead, used as its label directs, although Rutgers rates diatomaceous earth as less effective against cockroaches than boric acid. The same check applies to it as to any pesticide: look for the PCP registration number.

No. A total-release fogger sends its mist into the air, where it settles on floors, countertops and other surfaces, and very little reaches the cracks and voids where cockroaches spend most of their time. The University of Kentucky's cockroach fact sheet names foggers as a form of treatment it does not recommend for cockroaches and says they seldom are effective against household pests, and Rutgers lists them as not effective for cockroach control. Kentucky adds that the ingredients tend to be repellent, so insects scatter and move deeper into wall voids. There is a safety side as well: the US EPA notes that fogger propellants are typically flammable, so improper use can cause a fire or explosion. Put the money into bait stations and glue-board monitors instead.

You can suppress them in your unit, but you usually cannot finish the job alone. Rutgers University's fact sheet notes that German cockroaches spread between apartments through shared utilities, common walls and hallways, so a colony elsewhere in the building can keep reseeding your kitchen. Bait and monitor your own unit, seal the gaps around the plumbing under your sinks, and report the problem to your landlord or property manager in writing. In Ontario, the Landlord and Tenant Board's maintenance and repairs brochure says a landlord must take steps to control pests such as cockroaches and mice; tenancy rules are set province by province, so check with your own tenancy authority. Our how-to guide covers the apartment problem in more detail.

No. BuzzSkito is a mosquito and tick control service operating in the GTA — those are the only two pests we treat. We do not do cockroach treatments, and we do not sell or apply any of the products reviewed here. This cluster is independent research from our publishing team: the product guides focus on what is genuinely available and PMRA-legal for Canadian homeowners, and the identification and how-to guides are references for readers anywhere in North America. If a cockroach infestation is beyond DIY, a licensed pest control operator is the right call.