Outdoor PestsWildlife

What Eats Roaches?

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Cockroaches are common pests known for their resilience and adaptability. They can be found in nearly every corner of the world, from the deepest jungles to urban cityscapes. As such, they have developed a number of natural predators. This article delves into the question, “What eats roaches?” and explores the various creatures that feed on these ubiquitous insects.


Cockroaches are eaten by a variety of creatures including insects and arachnids like beetles, spiders, praying mantises, and parasitic wasps, amphibians such as toads and frogs, reptiles like lizards, snakes, and turtles, birds such as roadrunners, jays, owls, shrikes, magpies, and robins, and small mammals like mice, shrews, and hedgehogs. Even some unexpected predators like hedgehogs and certain species of fish like the arowana and oscar fish are known to feed on roaches.

Natural Predators of Cockroaches

Cockroaches fall prey to a wide range of creatures, each with their unique hunting strategies and adaptations. Here are some of the most common predators:

Insects and Arachnids

A variety of insects and arachnids feed on roaches. These include beetles, spiders (like the common house spider, wolf spider, and jumping spider), praying mantises, and parasitic wasps. The emerald cockroach wasp, for instance, has a peculiar way of parasitizing cockroaches by laying its eggs inside them, providing a live meal for its hatching larvae.


Amphibians such as toads and frogs are also known to feast on cockroaches. Their long, sticky tongues are perfect for snatching up roaches.


Reptiles, including lizards (like geckos, skinks, bearded dragons, and monitor lizards), snakes (like the rough green snake and the ringneck snake), and turtles, are known roach predators. Their quick reflexes and sharp teeth allow them to catch and consume these insects.


Various birds, including roadrunners, jays, owls, shrikes, magpies, and robins, are known to include roaches in their diet. These birds are equipped with sharp beaks and strong digestive systems capable of breaking down the roach’s tough exoskeleton.

Small Mammals

Small mammals such as mice, shrews, and hedgehogs also feed on cockroaches. They use their sharp teeth and strong jaws to break through the roach’s exoskeleton.

Unexpected Predators

Some unexpected predators of cockroaches include hedgehogs, which are known to eat roaches, and certain species of fish like the arowana and oscar fish.

The Role of Cockroaches in the Ecosystem

As much as we detest them, cockroaches play a vital role in the ecosystem. They serve as a food source for a variety of animals and help keep their populations in check. They are also important nutrient recyclers, feeding on decaying organic matter and breaking it down into nutrients that plants can use.

However, it’s important to note that while these natural predators can help control roach populations, they may not be the most effective solution for a roach infestation in your home. In such cases, it’s best to seek professional pest control services.

The Impact of Human Intervention

Human interventions, such as pesticide use, can indirectly impact the food chain and lead to other animals consuming roaches. Pesticides used to control roaches can affect other insects and arthropods, which can then be ingested by predators, leading to secondary poisoning. Therefore, it’s crucial to consider the potential ecological impact before using such methods.


In conclusion, cockroaches, despite their notoriety as pests, play a crucial role in the food chain. They serve as a food source for a diverse range of animals and contribute to nutrient recycling in the ecosystem. Understanding these relationships can provide insights into the delicate balance of nature and the potential impacts of human intervention.

So, the next time you see a cockroach and wonder, “What eats roaches?”, remember that these resilient insects are part of a complex and interconnected food web.

Frequently Asked Questions

Are there other insects that eat roaches?

Yes, aside from the ones mentioned in the article, there are other insects that eat roaches. For example, centipedes and certain types of ants (like the red imported fire ant) are known to prey on cockroaches.

Can domestic pets eat roaches?

While it’s not uncommon for pets like cats and dogs to catch and kill roaches, it’s not advisable to let them eat these insects. Roaches can carry a range of diseases and parasites that could potentially harm your pet.

What happens if the natural predators of roaches are removed from an ecosystem?

If the natural predators of roaches are removed from an ecosystem, it could lead to an overpopulation of roaches. This could have various negative effects, such as increased competition for food resources and potential spread of diseases.

Are there any plants that can repel roaches?

Yes, certain plants are known to repel roaches. These include catnip, mint, and cucumber. The strong odors these plants emit are said to deter roaches.

Can roaches survive without food?

Cockroaches are known for their resilience. They can survive for up to a month without food, but they require access to water every few days.

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