Where Do Roaches Come From: A Friendly Guide to Their Origin

folder_openBlattodea, Insecta
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Roaches, or cockroaches, are pesky insects that seem to appear out of nowhere. As a homeowner, you might be wondering where these unwelcome visitors come from. Don’t worry, you’re not alone, and by understanding their origins, you can better prevent and manage their presence in your home.

Roaches come from a variety of places, often seeking shelter, food, and water they need to survive. They can enter your home through cracks and crevices, floor drains, sewer pipes, or even hitch a ride in cardboard boxes and grocery bags. Among the most common species are the American, Oriental, and German cockroaches.

These insects are expert at hiding and reproducing, making them difficult to eliminate once they settle into your living space. Timing is crucial in roach prevention; by acting quickly and using appropriate control methods, you can limit their impact on your home and health.

The Origin of Cockroaches

Cockroaches are insects that have been around for millions of years. They are known for their incredible ability to adapt and survive in various environments. Let’s take a look at where these creatures come from and how they’ve managed to thrive in the habitats they’re found in today.

Believe it or not, cockroaches are actually ancient creatures that have been around since the time of the dinosaurs. Fossils have shown that they originated around 320 million years ago. Most of the cockroach species we come across today have evolved from these prehistoric insects.

One reason for their survival is their impressive adaptability. They can thrive in many different environments, from tropical rainforests to arid deserts and even in your home. Cockroaches have learned to be opportunistic, making the most of available resources. This adaptability has enabled them to thrive and spread across the globe.

When it comes to where roaches come from in an urban context like your home, it’s often a matter of them finding ways to enter through small gaps or cracks in the building. Once inside, they’re attracted to food sources and warmth, which is why they’re commonly found in kitchens or near heating sources.

To sum it up, cockroaches have a long history and a remarkable ability to adapt, making them both fascinating and notorious creatures. From their ancient beginnings to their current widespread presence, these insects have proven that they’re tough survivors who have mastered the art of adaptation.

Types of Roaches

German Cockroach

The German cockroach is the most common roach species found in homes, particularly in New Jersey. They are small, with a length of around 0.5 to 0.6 inches, and have a light brown color. These roaches can be identified by the two dark parallel stripes on their backs.

Pros:

  • Efficient at adapting to new environments
  • Can reproduce quickly

Cons:

  • Can cause allergies and asthma symptoms
  • Can contaminate food

Oriental Cockroach

Oriental cockroaches are larger than German cockroaches, with a length of about 1 inch. They are dark brown or black in color, which makes them easy to distinguish from other common species. These roaches thrive in damp environments and are often found in basements, sewers, and drains.

  • Pros: *
  • Not as common in homes as other species
  • Cons: *
  • Attracted to damp environments, which can lead to water damage
  • May carry harmful bacteria

American Cockroach

American cockroaches are the largest of the four species listed here, with lengths of up to 1.6 inches. They have a reddish-brown color and a distinct yellow band behind their heads. These roaches prefer warm, humid environments and are often found in sewers and other damp spaces.

  • Pros: *
  • Not as common in homes compared to German cockroaches
  • Cons: *
  • Difficult to control due to their large size and ability to fly
  • Capable of spreading disease

Brown-Banded Cockroach

The Brown-Banded cockroach is a small species, with lengths of around 0.5 inches. Their name comes from the distinctive brown bands across their wings, which make them easy to recognize. Unlike other species, Brown-Banded cockroaches prefer drier environments and are often found in cabinets, closets, and other hidden spaces.

  • Pros: *
  • Not as closely associated with damp environments
  • Cons: *
  • Can hide in harder-to-reach areas
  • Able to spread bacteria and trigger allergies

Comparison Table

Species Size Color Preferred Environment Health Risks
German Cockroach 0.5 – 0.6 in Light brown Various, indoors Allergies, asthma, food contamination
Oriental Cockroach ~1 in Dark brown Damp, basements Bacteria, water damage
American Cockroach Up to 1.6 in Reddish-brown Warm, humid Disease, difficult to control (larger, can fly)
Brown-Banded ~0.5 in Brown bands Dry, hidden spaces Bacteria, allergies, harder-to-reach hiding spots

By knowing the differences between these common cockroach species, you can better understand where they might be hiding and take appropriate steps to address any infestations in your home.

How Roaches Enter Your Home

Roaches can find their way into your home through various entry points. For instance, they can sneak in through cracks in the walls and foundation. It is essential to seal any gaps you find to prevent roaches from making themselves at home in your space.

These pests can also enter through pipes, drains, and holes in and around your home. Be sure to inspect and fix any issues to reduce the likelihood of a roach infestation. Roaches often crawl through windows, especially if there are damaged screens. It’s important to repair or replace any worn-out screens to keep them out.

A more surprising entry point is your home’s sewer system. Roaches, especially the American cockroach, can travel through sewer drains and find their way into your home. Regularly cleaning your drains and ensuring their covers are secure will help.

Lastly, roaches could hitch a ride on your belongings. This often happens when their egg cases attach to items you bring inside. Be vigilant when you move things like bags, packages, or plants into your home, and always inspect them for signs of roaches.

Remember to:

  • Seal cracks in walls and foundation
  • Fix any damaged pipes, drains, or holes
  • Repair or replace worn-out window screens
  • Secure sewer drain covers and keep them clean
  • Inspect belongings for roach egg cases before bringing them inside

Roaches and Their Habitats

Roaches can be found in various locations, both indoors and outdoors. They generally thrive in damp, dark, and warm spaces. Let’s explore some common areas where roaches might be found.

Car: Roaches in your car can be quite unsettling. They can easily enter through open windows or vents, especially if there are food crumbs or spills inside.

House: Roaches often enter homes in search of food, water, and shelter. They can invade your kitchen, bathroom, basement, attic, and even furniture.

  • Kitchen: Roaches are drawn to food particles and spills on countertops and floors, as well as accumulated grease in appliances.
  • Bathroom: The moisture and dampness attract roaches to bathrooms, where they hide in cracks and crevices near plumbing fixtures.
  • Basement: Dark, damp basements provide an ideal habitat for roaches, particularly in cluttered areas or near water sources.
  • Attic: Roaches may infest attics with poor ventilation, especially if there are food sources or nesting materials present.
  • Furniture: Roaches can hide in upholstered furniture, especially if it’s near food sources or in a humid environment.

Ceiling: Roaches can also be found on ceilings, particularly if there are water leaks or damaged plaster that provide entry points.

In summary, roaches thrive in damp, dark environments with food sources nearby.

Roach Infestation Signs

One sign of a cockroach infestation is the presence of fecal matter, which can look like dark spots or smears. You might also find cast skins, egg cases, as well as live or dead cockroaches.

Roaches tend to be active at night, so if you spot them during the day, this is a clear indication of a heavy infestation. Roaches enjoy hiding in protected areas such as cracks and crevices.

To inspect your home for roaches, place traps in all corners of the room, especially in the kitchen. Position them behind the stove, refrigerator, and inside cabinets. This helps determine where roaches are entering your home.

Being aware of roach infestation signs helps you to address the issue promptly. Remember, the sooner you take action, the easier it is to eliminate them from your living space.

Favourite Hideouts of Roaches

Roaches are versatile creatures that can find shelter in various places. They love hiding in areas that provide sufficient food, moisture, and warmth. Here’s a brief overview of some favorite hideouts of roaches.

Cardboard and Cardboard Boxes
Roaches appreciate the warmth and darkness of cardboard materials. They can easily hide and breed between the layers of cardboard boxes. Make sure to remove unnecessary cardboard from your home.

Clutter
Your clutter provides ample hiding spots for roaches. They like untidy spaces, such as stacks of paper and piles of laundry. Keep your living area clean and organized to prevent them from finding suitable areas to nest.

Appliances
Kitchen appliances like refrigerators, ovens, and microwaves can be perfect homes for these insects. Roaches can live in the small gaps behind and under these appliances, and they have access to food particles. Regularly clean behind your appliances to deter roaches.

Crevices and Cracks
Roaches can squeeze into the smallest of spaces. Tight spots, such as wall crevices or gaps between baseboards, provide an ideal habitat. Seal any gaps you find with caulk to prevent them from entering your home.

Bullets

  • Cardboard
  • Cardboard Boxes
  • Clutter
  • Appliances
  • Crevices
  • Cracks

Mulch, Gutters, and Firewood
Roaches can also hide outdoors in your garden or yard. They can be found in mulch, gutters, and stacks of firewood. Maintain your outdoor area by regularly cleaning gutters, using less organic mulch, and storing firewood away from your home.

By understanding these favorite hideouts, you can make your home less inviting to roaches and maintain a cleaner, healthier living environment.

Roaches and Health Risks

Cockroaches are more than just a nuisance. They can pose health risks, including carrying food-borne pathogens like E. coli, Salmonella, and Staphylococcus aureus. These pathogens can contaminate various surfaces, putting you at risk of getting sick.

Moreover, allergens from roaches can trigger asthma attacks. Their feces, saliva, and body parts contain proteins that can cause allergic reactions in some people. You may experience coughing, sneezing, or wheezing when exposed to these allergens.

To safeguard your health, it’s essential to take steps to control and eliminate cockroaches. Some key strategies include:

  • Decluttering and cleaning your home regularly
  • Removing food and water sources
  • Using traps or pesticides
  • Sealing entry points like cracks and crevices

Remember, prevention is better than cure. So, maintain a clean environment and be vigilant about roach control to minimize health risks for you and your family.

Prevention and Control Methods

General Sanitation

One of the most effective ways to prevent roaches is by maintaining a clean environment. Here are some steps you can take to keep your home clean and free of unwanted pests:

  • Vacuum floors regularly to remove food crumbs
  • Wash dirty dishes immediately after use
  • Dispose of garbage regularly and use sealed trash cans
  • Keep food stored in sealed containers
  • Fix any leaky faucets to prevent excess moisture

By following these simple steps, you can greatly decrease the chances of attracting roaches. Keeping a clean home is an essential part of roach prevention.

Sealing of Entry Points

Another important step in roach control is sealing entry points. Roaches often enter homes through gaps and cracks. Examples of areas you should examine for potential entry points include:

  • Doors
  • Windows
  • Plumbing fixtures
  • Vents
  • Grocery bags

Use caulk or other appropriate sealants to close off any identified gaps. By sealing all entry points, you can significantly reduce the likelihood of roaches coming into your home.

Professional Pest Control

In some cases, a professional pest control service may be necessary for effective roach control. These companies can evaluate your situation and provide tailored treatments, such as bait stations or pesticide applications.

Some potential advantages of using professional pest control include:

  • Expert knowledge and experience
  • Access to specialized treatment options
  • Ongoing monitoring and prevention services

However, there may also be some potential drawbacks to consider:

  • Cost of professional services
  • Possible need for multiple treatments

In conclusion, it’s essential to maintain a clean home, seal all possible entry points, and, if necessary, enlist the help of a professional pest control service. By taking these measures, you can effectively prevent and control roaches in your living space. Remember, prevention is key.

Getting Rid of Roaches

Home Remedies

Boric acid is an effective and inexpensive option for getting rid of roaches. Sprinkle a thin layer in areas where you have seen roaches, such as under appliances or in cabinets. However, be cautious when using boric acid, as it can be harmful to pets and humans if ingested.

Other home remedies include:

  • Placing sticky traps in strategic locations around your home
  • Sealing cracks and crevices where roaches might enter
  • Keeping your home clean and clutter-free to reduce hiding spots and food sources

Remember, no home remedy is foolproof, and you might still need professional help for severe infestations.

Professional Treatments

When dealing with a persistent roach problem, it’s often best to consult a pest control professional. They have access to stronger treatments and can help identify the sources of the infestation.

Some advantages of professional treatments are:

  • Access to stronger insecticides
  • Expertise in identifying and targeting roach hiding spots
  • Ongoing support to ensure the infestation is fully eradicated

Keep in mind that professional treatments can be costly, but they provide a more thorough solution for getting rid of roaches.

Method Pros Cons
Boric Acid – Inexpensive – Can be harmful if ingested by pets or humans
Sticky Traps – Environmentally friendly – May not be effective on large infestations
Professional Treatment – Expertise and strong insecticides – Can be expensive

In conclusion, both home remedies and professional treatments offer ways to get rid of roaches. Consider your specific situation and the severity of the infestation when choosing the best course of action. Remember to always follow safety precautions and consult professionals when needed.

 

 

Cockroach

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Authors

  • Bugman

    Bugman aka Daniel Marlos has been identifying bugs since 1999. whatsthatbug.com is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

    View all posts
  • Piyushi Dhir

    Piyushi is a nature lover, blogger and traveler at heart. She lives in beautiful Canada with her family. Piyushi is an animal lover and loves to write about all creatures.

    View all posts
Tags: Cockroaches

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33 Comments. Leave new

  • I just remarked to my husband how lovely this cockroach is, and his response was “say what???” (We both lived in Philadelphia, so we know cockroaches for the pests they can be.)

    Anyway, since I’m fairly obsessed with photoshop CS3 at the moment, I created my first paintbrush preset of this image. It turned out great! I thought you’d appreciate that. 🙂

    Reply
  • And now I’m gonna go willynilly creating WTB brushes.

    Reply
    • While we can appreciate your new found appreciation of PhotoShop, please do not send us any digitally transformed images. We must confess that there have been a few times when the insect images we received were so unusual and fantastic that we thought there must have been PhotoShop enhancement at work. We were happy to learn we were wrong.

      Reply
  • Oh, no. I’d never do that. 🙂

    Reply
  • I actually saw 2 of these roaches yesterday whilst hiking up Myburgh Ravine in Constantia…even though I have never heard or saw one before, I knew it was a roach because of my phobia for them so just had to google it to see if i was right….and because of my fear, I was not able to take photos

    Reply
  • On the topic of identification, I’m guessing Gyna. As to the species if it’s even been described… dunno.
    The similarity of the pronotal markings to Blaberus craniifer is remarkable.

    Reply
  • Species of Periplaneta found in Florida
    1. Color above shining blackish brown; length 24-33mm
    ……………………………….. P. fuliginosa (Serville)
    – Color not as above; pronotum with distinct to vague
    pronotal markings ………………………………………….. 2
    2(1).Tegmina with conspicuous lateral pale basal stripe;
    pronotum with sharply contrasting, pale or yellow
    margin; length 23-29mm …. P. australasiae (F.)
    – Tegmina entirely reddish brown; pronotum with less
    defined markings …………………………………………… 3
    3(2). Distal segment of cercus elongated, length more
    than twice width; male with caudal tergite deeply
    notched; distal portion of plate thin, projecting as
    hood over corresponding terminal sternite; median
    segment unspecialized ……….. P. americana (L.)
    – Distal segment of cercus triangular; less than twice
    width; male with caudal tergite only slightly
    notched; distal portion opaque; median segment
    specialized, consisting of a shallow channel haveing
    a tuft of hairs; 25-33mm ……………………………..
    …………………………………P. brunnea Burmeister

    Reply
  • Species of Periplaneta found in Florida
    1. Color above shining blackish brown; length 24-33mm
    ……………………………….. P. fuliginosa (Serville)
    – Color not as above; pronotum with distinct to vague
    pronotal markings ………………………………………….. 2
    2(1).Tegmina with conspicuous lateral pale basal stripe;
    pronotum with sharply contrasting, pale or yellow
    margin; length 23-29mm …. P. australasiae (F.)
    – Tegmina entirely reddish brown; pronotum with less
    defined markings …………………………………………… 3
    3(2). Distal segment of cercus elongated, length more
    than twice width; male with caudal tergite deeply
    notched; distal portion of plate thin, projecting as
    hood over corresponding terminal sternite; median
    segment unspecialized ……….. P. americana (L.)
    – Distal segment of cercus triangular; less than twice
    width; male with caudal tergite only slightly
    notched; distal portion opaque; median segment
    specialized, consisting of a shallow channel haveing
    a tuft of hairs; 25-33mm ……………………………..
    …………………………………P. brunnea Burmeister

    Reply
  • Periplaneta americana – common in malaysian caves

    Reply
  • I believe that this may in fact be a young blattid, with the ‘tail’ being an ootheca. It is missing the saltatorial hind legs of most orthopterans.

    Reply
  • Certainly a cockroach, although not a young one since only adults can produce oothecae. Maaaaaybe Blattellinae, although I don’t know all those zosterias very well.

    Reply
  • Update: just found one crawling on ima’s porch in kfar Bilu Israel, about a pinky big and not interested in interaction with humans nor cat.

    Reply
  • Weaver ants are social insects that live in leves connected by silk.weaver ants are dangerous.

    Reply
  • Help

    Reply
  • Black pepper bugs. What are they and how do you get rid of them

    Reply
  • I see two comment. My comments where very long. I can’t retrieve them. Can you get them back to the other sight. Please. Ty

    Reply
  • Please did you read my comments? I put them in wrong place. I was trying to put them with what’s that bugs. Regarding small black dots

    Reply
  • Female Cartoblatta pulchra

    Reply
  • the cockroach is from the family Blattidae. could possibly be Cartoblatta, Deropeltis or Pseudoderopeltis

    Reply
  • looks like a species of Rhyparobia

    Reply
  • Ergaula sp., but perhaps not E. capucina, need to check male specimen to properly identify.

    Reply
  • AlexW, extreme entomophile
    December 19, 2017 5:17 pm

    Possibly Periplaneta australasiae with heavy pronotum markings. Like australasiae, it also has two yellow markings along the wing edges.

    Even if it isn’t austr., the general shape reminds me of Periplaneta. Of course, it may be a harmless non-pest lookalike, though

    Reply
  • AlexW, extreme entomophile
    December 19, 2017 5:17 pm

    Possibly Periplaneta australasiae with heavy pronotum markings. Like australasiae, it also has two yellow markings along the wing edges.

    Even if it isn’t austr., the general shape reminds me of Periplaneta. Of course, it may be a harmless non-pest lookalike, though

    Reply
  • The need to molt periodically goes along with having a hard exoskeleton. It’s a major structural fact, not only for insects, but for all the Ecdysozoa, a huge clade of the animal kingdom that comprises the arthropods, nematodes, water bears, velvet worms, priapulids, and a few other phyla. Ecdysis—molting—was a major innovation in the history of life, and I thought I’d give it a shout out.

    Reply
  • where can I find a big Roche

    Reply
  • Nikki Durrant
    March 17, 2021 11:33 am

    I have just discovered a colony of them living in a pile of old pine tree trunks, plenty of females and young, only seen one male so far. I agree that they are Cape Mountain Cockroaches. They squeal when disturbed and squirt out a green juice that stains your skin brown. Port Elizabeth, Eastern Cape.

    Reply
  • I think it’s like a yamato cockroach (https://en.wikipedia.org/wiki/Japanese_cockroach). I also found it in my room in Korea. FYI, it can fly actually. I saw it flying around, and I could not sleep well at that time.

    Reply

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