can cockroaches survive cold weather

Although cockroaches are cold-blooded arthropods, can cockroaches survive cold weather?

This blog article will provide an answer to that question and details on how they survive the cold. Keep reading to learn more!

Temperatures between 15 and 0 degrees Fahrenheit can kill a cockroach, while temperatures below 40 degrees will prevent it from reproducing.

As temperatures begin to fall, cockroaches seek a warm spot to hide.

What Are The Best Temperatures For Cockroaches?

best temperature for cockroach

Cockroaches enjoy temperatures ranging from 77 to 86 degrees Fahrenheit (25 – 30 degrees Celsius).

They may survive at temperatures much higher or lower than this, although they are most active between these ranges. 

Infestations are more typical in the spring and summer because they thrive in warmer weather and may multiply rapidly.

The spring and summer months are when homeowners are more likely to detect infestations within their houses, not necessarily because the roaches are just migrating in.

Can Cockroaches Survive Cold Weather?

cockroack survive cold weather

Cockroaches are hardy organisms that have survived on Earth for more than 350 million years and will most likely continue to do so long after humans have disappeared.

Cockroaches, natively tropical critters, are in danger throughout the winter; they often die when exposed to temperatures below 15 degrees Fahrenheit. 

However, this does not stop them from surviving throughout the winter months.

Cockroaches use a variety of strategies to avoid such exposure and survive the winter months, including seeking shelter in homes.

Additionally, cockroaches of different species have varying degrees of resistance to cold, for instance.

1. German Cockroaches

german cockroach species

German cockroaches, native to Southeast Asia, are sensitive to severe temperatures.

According to research, German cockroaches die within 10 hours of exposure to temperatures below 45° F.

They will perish within an hour if the temperature falls below 14° F.

They dwell solely in and near human houses due to their incapacity to endure the cold. Warmth is also required for German cockroach reproduction.

german cockroach

German cockroaches lower their activity levels by 75% throughout the winter to save energy and spend most of their time sleeping until the weather warms again.

On the other hand, German cockroaches will continue to proliferate and infiltrate the house provided their chosen habitat is warm enough, and there is enough food and water for them.

This makes removing bugs from home difficult.

German cockroaches like temperatures about 70° F, the typical temperature many people maintain in their homes.

Unfortunately, this encourages cockroaches to enter the residence, where they will flourish over the winter months.

2. Brown-Banded Cockroach

brown banded cockroach species

The brown-banded cockroach is distributed across the United States; however, it is not as common as the German cockroach.

They are drawn to heated office buildings, residential complexes, and work-generating appliances such as electric motors. 

They often favor high cupboards in the house and may cause infestations in the kitchen.

Brown-banded cockroaches may survive the winter as long as they can establish their homes inside.

3. Oriental Cockroach

oriental cockroach species

Oriental cockroaches, unlike most other roaches, can endure frigid temperatures. Although they are indoor animals, they often wander outside in quest of food.

They will hide behind mulch, leaves, and stones over the winter.

When the temperature goes too low, they will seek refuge indoors, where it is warmer. Oriental cockroaches like cold, dark areas to hide, such as sinks, pipes, basements, or sewers.

Oriental cockroaches are more temperature resistant than others; however, they often seek warmth within rock walls.

They also need to be near water to thrive, although they can go for up to a month without food and will consume very little if they are outside.

This is how they survive the winter. Oriental cockroaches only breed once a year, during the winter months.

4. American Cockroach

american cockroach species

The American cockroach is a kind of cockroach that lives outside and struggles to survive during the harsh winter months.

Despite having access to wood mulch substrate that stayed above freezing, American cockroaches died when air temperatures in a non-heated environment fell below 0°C.

When subjected to temperatures of 8, 9, and 10°C for 72 hours, about 40% of American cockroaches perished.

Mobility was also restricted, with the cockroaches eventually becoming immobile.

However, as the temperature rose, so did their chances of survival and movement.

Can roaches survive in the cold?

american cockroach

According to the research, American cockroaches could not endure temperatures below 10°C for more than a few days, which would prevent them from even having the opportunity to locate a place to hibernate.

Another efficient way of cockroach control for this species is freezing.

An American cockroach will hibernate and may survive the winter if it can find warmth in a pile of wood or inside a dying tree.

Many will seek a warmer environment within a human structure, where they may stay active or enter a dormant state throughout the winter.

However, they are unlikely to last long enough to locate safely since they are a tropical species.

How Long Can Cockroaches Survive in Cold Weather?

cockroach survival

Can cockroaches die from cold?

Cockroaches may hibernate to withstand the colder weather. They may, however, perish if the temperatures are too low.

If given enough time, they may extend their lives by adapting to the colder conditions.

However, their chances of survival in freezing conditions decrease the longer they are confined inside them.

If cockroaches are trapped in a temperature range of 45 degrees Fahrenheit (7 degrees Celsius), their odds of dying dramatically after 10 hours.

While it is conceivable that they may live longer, it is unlikely. 

The lower the temperature, the quicker the cockroaches will die and the less likely they will survive.

Most cockroaches will die in half an hour at 0 degrees Fahrenheit (-17 degrees Celsius).

How to Keep Cockroaches Away in Winter?

keep roaches away winter

Worse, some cockroach species will only reproduce in the winter if they can locate a warm hiding spot.

If you have a few cockroaches in your house in the autumn, you might have a full-fledged infestation by spring.

Cockroaches’ favorite hiding locations include:

  • Refrigerator motor
  • Bathrooms
  • Walls
  • Basements
  • Kitchen cabinets
  • Subflooring
  • Oven
  • Radiators
  • Plumbing areas

However, there are several additional methods for dealing with a cockroach infestation, whether in the dead of winter or the weather is beginning to warm up.

It’s easiest to deal with the winter infestation when there are fewer roaches within the house. 

The following are some of the approaches that may be employed.

Freezing Method

As previously stated, freezing is an efficient method of dealing with tiny numbers of cockroaches that have infiltrated the residence.

This approach is successful, but its use is restricted to tiny things that can be wrapped in a bag and frozen.

Vacuuming Method

vacuum the floor

It is feasible to vacuum roaches and properly clean the space they were in. This will eradicate all signs of the roaches from that area, but it may take some time to go through the whole house. 

When using a vacuum, it must be emptied promptly into a container from which the roaches cannot escape.

Bagless backpack vacuums are the most effective at removing bugs.

Use Traps and Bait

insect trap bait

Traps successfully remove numerous roaches from the house, but their effectiveness depends on the frequency of roaches entering the traps.

The traps should be placed in areas where roaches have been regularly seen and updated. Use a trap with pheromones as a basis to make them more effective.

Because the pheromones attract additional roaches, the traps may capture as many as feasible.

Apply Poisons

Some things are safe to use in the house yet are toxic or otherwise lethal to roaches.

Diatomaceous earth is safe to use if you don’t inhale the powder when spreading it about the house. 

When applied in roach-infested regions, it is quite effective.

Boric acid is another safe alternative to use in the house if dogs and children are kept out of reach. If consumed, it may be hazardous.

Call For Professional Assistance

ask professional assistance

It is the most effective technique for dealing with roaches in the house.

Whether there are a few roaches here and there or a major infestation, the specialists can exterminate the roaches from the residence, regardless of the temperature.

Keep in Mind the Following

  • Cold-blooded cockroaches can’t adjust their temperatures. Although they’re adaptive, too much cold harms them greatly.
  • Most cockroaches perish below 0°F. American and Surinam cockroaches cannot thrive in cold gardens.
  • Cold temperatures affect cockroaches mentally. 
  • If you steadily drop the temperature, they may adjust and survive. 
  • If they’re suddenly exposed to cold, their minds and bodies won’t acclimatize, making survival improbable.

Read Next: Where Do Flies Go When It Rains? Complete Guide!

Final Verdict

Can cockroaches survive cold weather? Because they have cold blood, cockroaches cannot control their body temperature.

If they cannot locate a place to reside that is warmer, many will enter a condition of hibernation known as diapause. 

Most cockroaches will perish if the temperature drops below 15° F. Roaches will reproduce more slowly throughout the winter as they slow down to preserve energy.

Thanks for reading!

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