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Do Spiders Eat Bed Bugs?

Are you suspecting that your bed may be infested with bed bugs and want to know, do spiders eat bed bugs?

Read on to learn how spiders and bed bugs are connected and if spiders can help with bed bug problems.

Do Spiders Eat Bed Bugs?

Do Bed Bugs Have Any Natural Predators?

Spiders are among the most effective predators of bed bugs. They don’t specifically hunt bed bugs, but they’ll capture and eat them along with other household pests if they fall into their webs.

In your home, spiders can contribute to controlling the bed bug population to some extent.

Ants, especially the Pharaoh ant, are also known to eat bed bugs. Their role in controlling bed bugs is limited but still noteworthy. These ants consume small insects, and bed bugs can be included in their diet.

Moving on to other predators, cockroaches have been known to eat bed bugs occasionally, although this is not their primary food source. 

Bed bugs are not a significant part of a cockroach’s diet, but in an environment where these insects coexist, it can happen.

Reptiles such as lizards, along with some birds and frogs, might eat bed bugs as part of their varied diets, especially in natural environments.

However, relying on these predators for pest control in your home is impractical.

an infestation of bed bugs

Do Spiders Eat Bed Bugs?

Spiders are natural predators and are part of a pest control crew that includes other insects and animals like pharaoh ants, mosquitos, and bats.

Common Spider Predators:

  • Jumping spiders

  • Crab spiders

  • Wolf spiders

  • Yellow sac spiders

These spiders do not use webs to catch their prey, but they can be quite opportunistic. If a bed bug comes across their path, they may see it as potential food.

While not all spiders are suited to prey on bed bugs, those that do can help keep their population in check.

Most spiders prefer to feast on a diverse diet; they do not hunt bed bugs but will consume them if they’re convenient.

Cellar spiders, although not specifically mentioned as predators, could consume bed bugs. This is because they are opportunistic in nature.

Bed Bugs as Prey: Bed bugs are insects that belong to the class Hemiptera. They are not typically the first choice for spiders, partly because of their environment. Bed bugs often live in places where spiders do not frequent, such as beds and furniture crevices.

While spiders can be beneficial in controlling pests like bed bugs, relying on them for pest control is not recommended.

Methods like diatomaceous earth may be a more effective approach if you have a significant bed bug problem.

Remember, spiders contribute to the balance of your home’s ecosystem by managing populations of various insects, not bed bugs.

spider crawling on the top of bedding looking for bed bugs

What Kind Of Spiders Eat Bed Bugs?

You may find it interesting to know that not all spiders are natural predators of bed bugs. However, some species do have a penchant for these household pests.

Wolf Spiders: Renowned for their hunting skills, these spiders don’t rely on webs. They actively hunt their prey, which can include bed bugs. Their keen eyesight and speed make them adept at catching these elusive insects.

Yellow Sac Spiders: These spiders are known for their yellowish color and the silken sacs they create, where they retreat during the day. When night falls, they emerge and can prey on bed bugs.

Jumping Spiders: This type of spider is recognized by its great vision and jumping ability, which it uses to ambush prey. If given the opportunity, they may consume bed bugs.

Crab Spiders: Although they mimic the appearance and movements of crabs, these spiders are capable of eating bed bugs. They lie in wait for their prey, grabbing it with their front legs when it comes close enough.

Here’s a simple breakdown:

  • Wolf Spiders: Active hunters
  • Yellow Sac Spiders: Silken sac dwellers, nocturnal hunters
  • Jumping Spiders: Use vision and jumping to ambush
  • Crab Spiders: Ambush predators, crab-like appearance

These spiders contribute to controlling bed bug populations. If you encounter them, they might be helping keep the bed bug numbers in check.

can spiders kill bed bugs in your home

Any Other Pests That Also Eat Bed Bugs?

When you’re dealing with bed bugs, you might find comfort in knowing that there are several natural predators that can assist in controlling their population.

Apart from spiders, several other pests might contribute to reducing bed bug numbers in your environment.

  • Insects: Certain insects are known to prey on bed bugs. For instance:
    • Cockroaches: These scavengers will consume almost anything, and bed bugs are no exception.
    • Ants: Some ant species, like Pharaoh ants, have been observed feeding on bed bugs.
    • Ladybugs: Though not their preferred food, ladybugs have been known to eat bed bugs as well.
  • Arachnids: Besides spiders, other arachnids can also be natural predators of bed bugs:
    • Mites: These tiny relatives of spiders often feed on the eggs of bed bugs, helping control their reproduction.
  • Reptiles: If you live in an area with these creatures, they might help keep bed bug numbers in check:
    • Geckos: These small lizards are known to eat a variety of insects, including bed bugs.

Here is a quick overview of the predators that might be helping you covertly with your bed bug problem:

Predator Type Notes on Bed Bug Predation
Cockroaches Insect Not picky eaters; will include bed bugs in their diet.
Ants Insect Some species, like Pharaoh ants may eat bed bugs.
Ladybugs Insect Can consume bed bugs, though not a primary food source.
Mites Arachnid Known to feed on bed bug eggs.
Geckos Reptile Eat bed bugs, among other insects.

bed bugs and spiders on the top of a bedspread

Are There Any Natural Bed Bug Control Methods?

When dealing with bed bug infestations, it’s natural to seek methods that are both effective and kind to the ecosystem. Fortunately, there are several friendly approaches you can implement:

  • Heat Treatment: Bed bugs are susceptible to high temperatures. Washing your bedding at a temperature of 120°F or higher can eliminate these pests. Similarly, a steam cleaner can penetrate mattress seams and cracks where bed bugs hide.
  • Diatomaceous Earth: This is a powdery substance that you can sprinkle around areas where bed bugs are found. It’s non-toxic and works by dehydrating the insects.
  • Vacuuming: Regularly vacuum your space to remove bed bugs from floors, furniture, and other surfaces. Make sure to focus on areas near your bed and dispose of the vacuum contents in a sealed bag.
  • Sealing Cracks: Prevent bed bugs from entering or escaping by sealing cracks and crevices. Check around baseboards, windows, and bed frames.
  • Natural Predators: Some insects and arachnids, such as certain types of spiders that feed on insects, might prey on bed bugs. However, introducing such predators into your home is not a practical solution.
  • Traps: There are various traps available, some of which use heat or CO2 to lure and trap bed bugs.

Keeping your living space clean and clutter-free reduces hiding spots for bed bugs and makes other control methods more effective.

which spiders eat bed bugs

How To Kill Bed Bugs Without Using Chemicals

Here are some effective strategies that are friendlier to both the environment and your health:

  • Heat Treatment: Bed bugs are not resistant to high temperatures. Simply wash your bedding, linens, and clothes in hot water and then dry them on the highest dryer setting. For items that can’t be washed, placing them in a hot, closed car on a sunny day can also effectively kill bed bugs.
  • Vacuuming: A thorough vacuum of your home can capture bed bugs and their eggs. Make sure to focus on mattresses, bed frames, furniture, and floors. Dispose of the vacuum bag in a sealed plastic bag promptly after cleaning.
  • Steam Cleaning: If you have a steam cleaner, it can be an invaluable tool. Steam can penetrate fabric surfaces and kill bed bugs at all stages of their life cycle. Use on mattresses, sofas, and other potential hiding places.
  • Diatomaceous Earth: This is a natural, powdery substance harmful to bed bugs. Sprinkle diatomaceous earth around bed frames, in cracks, and in crevices where bed bugs may hide. It pierces their exoskeletons, causing them to dehydrate and die.
  • Encasements: Protect your mattress and box spring with a bed bug-proof cover. These encasements trap bed bugs inside, preventing them from feeding and breeding.

bed bug infestation under a floorboard with bed bug eggs


In short, spiders can help control bed bug populations by eating them. However, relying on them solely for pest control is impractical. 

Other natural predators include ants, cockroaches, lizards, birds, and frogs. Heat treatment is a more reliable method to reduce bed bug numbers in your home without using chemicals.

Vacuuming and steam cleaning are also effective strategies to get rid of these creatures.