Quick Guide to Common Cockroaches in Canada
| Cockroach | Approximate Size | Appearance | Common Hiding Areas |
|---|---|---|---|
| German cockroach | 13–16 mm | Light brown with two dark stripes behind the head | Kitchens, bathrooms, appliances, cabinets |
| Brown-banded cockroach | 10–15 mm | Light brown with pale bands across the body | Cabinets, furniture, electronics, bedrooms |
| American cockroach | 35–40 mm | Large, reddish-brown body | Basements, drains, utility areas, commercial buildings |
| Oriental cockroach | 20–30 mm | Very dark brown or black | Basements, drains, crawl spaces, damp areas |
These four species are among the main structure-infesting cockroaches identified by Canadian pest-control references.
German Cockroach
German Cockroaches are the species most commonly associated with cockroach infestations in residential settings.
They have an average body length of 13-16 millimeters. They are tan to light brown in color, with two dark longitudinal stripes located in the area immediately behind their heads. The German Cockroach has been named by Health Canada as one of the most common cockroaches found in Canadian homes, surviving indoors during harsh winter conditions in Canada.
Where German Cockroaches Hide
German cockroaches prefer warm areas with easy access to food and moisture. In homes, they are commonly found:
- Behind refrigerators, stoves, and dishwashers
- Under kitchen and bathroom sinks
- Inside cupboards and cabinets
- Around plumbing openings
- Behind baseboards and wall gaps
- Near garbage and recycling areas
In apartment and condominium buildings, they can also move between units through wall voids, plumbing routes, and shared utility areas.
What a German Cockroach Sighting Means
A single sighting of a German cockroach is not to be overlooked. The German cockroach spends a considerable amount of time hiding within cracks, appliances, cabinets, and wall openings.
It is common to see only a small number of adults even if there are other cockroaches, nymphs, and egg cases hidden somewhere.
Cockroaches that keep being spotted near the kitchen area after dark may be German cockroaches. This is also why it helps to understand why kitchens attract pests.
Brown-Banded Cockroach
The brown-banded cockroach is one of the small indoor cockroaches, which ranges from 10 to 15 mm in length.
It has light-brown coloration and conspicuous pale or yellow bands on its wings or abdomen.
An important distinction between brown-banded and German cockroaches is the requirement for moisture. The brown-banded cockroach is able to survive in much drier conditions. Therefore, it is not confined to kitchens and bathrooms only. According to Canadian sources on pests, they may inhabit heated areas, cupboards, ceilings, attics, and near electric appliances.
Where Brown-Banded Cockroaches Hide
Look for them around:
- Upper kitchen cabinets
- Shelving
- Furniture
- Picture frames
- Closets
- Electronics
- Appliance motors
- Warm areas near ceilings
This behaviour can make an infestation easy to miss if you inspect only sinks, drains, and lower cabinets.
American Cockroach
American cockroaches are much bigger than German or brown-banded cockroaches.
Adults measure about 35 to 40 millimeters long. Their bodies have a reddish-brown color, with a pale yellow or tan region on their pronotum at the back of their heads.
Their big body size is what makes them easily recognizable among cockroaches.
Where American Cockroaches Are Found
American cockroaches favour warm, humid and protected areas. They can be associated with:
- Basements
- Boiler and mechanical rooms
- Drains
- Sewers
- Utility spaces
- Bathrooms
- Commercial kitchens
- Food-handling facilities
They are more often linked to drains, sewers, basements, and other damp areas than the German cockroaches.
A single sighting of a large cockroach may not indicate a large breeding colony inside the house. Nevertheless, frequent sightings should be looked into, especially near drains, utility rooms, and basements.
Oriental Cockroach
The Oriental cockroach is very distinct from the German cockroach.
They are dark brown to black and have a glossy look. They grow to about 20-30 mm long and are stouter than the German and brown-banded cockroaches.
Oriental cockroaches love cool and moist habitats.
Where Oriental Cockroaches Hide
Typical locations include:
- Damp basements
- Floor drains
- Crawl spaces
- Utility areas
- Sewer connections
- Areas beneath porches
- Moist exterior areas
- Decaying organic material
While certain cockroaches tend to fly, Oriental cockroaches usually crawl more than fly.
If there have been several appearances of dark-colored cockroaches in your basement or near the drains, then check for moisture and access from outside.
What About Wood, Australian, and Smoky-Brown Cockroaches?
Other species of cockroaches can also be found in Canada or enter buildings from time to time.
Wood cockroaches, for example, are primarily outside insects that live in wooded areas, leaf litter, logs, etc. Just because there happens to be one cockroach entering through the open window or door doesn’t mean that there are any infestations inside.
Australian and smoky-brown cockroaches are also mentioned in some Canadian pest references, yet they are not considered to be the first to think about if one deals with kitchen or apartment infestations in Ontario. German, American, Oriental, and brown-banded cockroaches are definitely considered by Canadian sources to be structure-infesting species.
Identification is always better than thinking that all brown insects in the house are the same cockroaches.
How to Tell Which Cockroach You Have
Size should be your first concern.
A very small light-brown cockroach with two dark stripes on its back will be the German cockroach.
The same small cockroach with pale bands going across its body could be a brown-banded cockroach.
An extremely large reddish-brown cockroach can be an American cockroach.
A large, shiny, black cockroach seen around a damp basement or drain could be an Oriental cockroach.
Location is also very important in identifying the species.
Small cockroaches that gather around sinks and appliances are more likely to be German cockroaches. Small cockroaches seen up high on the walls, in furniture, or near electronic equipment could be brown-banded cockroaches.
Large cockroaches seen around basements and plumbing need to be investigated differently.
Why Identifying the Species Matters for Treatment
Cockroach treatment should not start with just spraying all the cockroaches that you encounter.
This can depend on the type of cockroach involved since the species decides the inspection areas for the technicians.
For instance, in the case of the German cockroach, there will be need for more inspection around kitchen appliances, cabinets, plumbing and harbourage areas. On the other hand, brown-banded cockroach might need inspection above the ground and around furniture or electronics.
Treatment of cockroaches by targeting only the visible ones will be futile since the harbourage area remains untouched.
Should You Treat Cockroaches Yourself?
One cockroach that accidentally enters from the outdoors is a case that does not necessarily need to seek professional help.
Repeated sighting inside the home is something else.
Professional help is recommended when cockroach nymphs, eggs, repeated droppings, many cockroaches in the trap, cockroaches found in different rooms, or continued activity despite sanitation and surveillance are noticed.
The case of apartment and other multiple dwelling units is somewhat special since there may be activity that spills over to different units.
For pesticide use, Health Canada recommends using registered products for the specific pest, looking for a Pest Control Products number and reading the labels carefully.
Homeowners dealing with repeated activity can also read more about how to get rid of cockroaches in Barrie.
Which Cockroach Is Most Common in Barrie Homes?
When it comes to the common infestation cases in Barrie, the German cockroach is one of those species that homeowners should be wary about.
While it is true that the cold winters in Barrie would usually keep German cockroaches away, there are still ways for these pests to infest homes all year long since they can live and breed indoors despite the weather conditions.
Apartments, restaurants, kitchens, food businesses, condominiums, and other places that are heated year round may serve as their nesting ground.
Cockroach Identification and Control in Barrie
If there are cockroaches in your Barrie home or workplace, identifying the type of cockroach is the first thing you need to do.
Simcoe PestX will inspect areas such as kitchens, bathrooms, appliances, drains, storerooms, basements, and any other possible harborages that the cockroaches might be found in. Based on the cockroach type, infestation size, and areas affected, appropriate treatment can then be chosen.
For cockroach extermination and pest control in Barrie and nearby Simcoe County neighborhoods, call Simcoe PestX today.