Many animals eat roaches, but lizards (like geckos, bearded dragons), frogs/toads, spiders, centipedes, large beetles, parasitic wasps, ants, mice, shrews, rats, and birds are common predators, with some pets like geckos or hedgehogs eating them voraciously. Inside homes, beetles, silverfish, and even other roaches also scavenge them, while certain fungi can also be lethal.
Cockroaches Natural Predators
Toads and frogs. Lizards, such as leopard geckos, bearded dragons, monitor lizards, iguanas and even panther chameleons. Certain large species of beetles. Certain kinds of parasitoid wasps.
To get rid of 100% of roaches, you need a multi-pronged attack: deep cleaning (remove food/water), sealing entry points, and using baits/dusts like boric acid or diatomaceous earth, plus professional help for severe cases. Focus on eliminating food sources, sealing cracks, and applying baits strategically in hidden spots, repeating treatments and maintaining cleanliness for long-term control.
Dependence on Water. Of all their needs, a cockroach's reliance on water is perhaps its most significant vulnerability. While a cockroach can live for up to a month without food, it can only survive for about a week without water. This makes moisture control a critical component of any effective pest control plan.
You shouldn't squish a cockroach because it spreads harmful bacteria, releases pheromones that attract more roaches, and creates a messy, smelly stain, potentially triggering allergies or asthma, with better, cleaner options like traps or professional pest control available for proper management.
Be Kind, Not Cruel
Harsh chemicals may also harm you and your animal companions. They're also ineffective because they don't address how and why cockroaches are entering your home. Killing cockroaches is cruel and futile.
While yes courage and cowardice are relative to us, fear is not. Cockroaches are pretty fast yet they fear us (even though they are one of the most resilient species, growing back heads, limbs, etc.)
Here's it is in a nutshell: cockroaches eat decaying matter, trapping nitrogen in their poop, which is then released into the soil when they go number 2. Without that nitrogen-rich poop feeding our environment, we'd be in serious trouble. Think of no plants, crops, food…
Gibbons and her colleagues ultimately found “strong evidence for pain” in adult flies, mosquitoes, cockroaches, and termites. Such insects did not appear to be at the bottom of a hierarchy of animals; they met six out of eight criteria developed for the Sentience Act, which was more than crustaceans.
Leaving the light on doesn't deter cockroaches effectively because they can navigate in low-light conditions. While they're mostly active at night, they may still come out in search of food or water. During the day, cockroaches hide in dark areas not directly exposed to light.
German cockroaches are known for their prolific reproduction, with a female capable of producing up to 4 to 6 egg cases (oothecae) in her lifetime, each containing around 30 to 40 eggs. Under optimal conditions, they can go from egg to reproductive adult in as little as 100 days.
Dish Soap + Water Spray
Dish soap water is an effective method to kill cockroaches on contact. It breaks down the protective wax coating on cockroaches' bodies and suffocates them. Mix 2 tablespoons of dish soap in 1 cup of water, shake it, and spray it directly to get rid of them overnight.
Yes, cockroaches may crawl on beds at night, attracted by food crumbs, sweat, or warmth. While bites are rare, their presence can disturb sleep and spread germs.
Unfortunately, cockroaches are not loners. If you see one, there are likely many more that you can't see. Cockroaches are nocturnal creatures, so you'll most likely spot them late at night, especially if you walk into your kitchen and turn on the light.
A female American roach can produce up to 224 offspring. Nymphs go through 10 to 13 instars before reaching maturity. Adult males can live up to 362 days, whereas adult females can live more than 700 days.
They'll feast on almost anything that is derived from something that was once a living organism, such as plants and animals. They will also eat cardboard boxes, book bindings, wallpaper glue, stamps, leather, feces, fingernails, hair, toothpaste, soap, their own cast-off skins, and even other cockroaches.
Spiders and cockroaches have tiny hairs on their legs that they use to pick up sounds, and caterpillars have similar sound-receiving hairs on their bodies. One species known for its acute hearing is the elephant. Elephants have large ears, but they can also hear through their feet.
Majority of the cockroaches prefer areas with moisture. However, brown-banded cockroaches can survive numerous days in dry areas without water. Cockroaches are not entirely invincible, and water is their weakness. They cannot survive complete scarcity of water.
Therefore, a severe increase in activity is normal after a spray treatment. The weird behaving roaches you're seeing are testament to the treatment being effective, the active ingredient is a neurotoxin for insects, so their nerves start acting up. That makes them walk funny or just lie around, twitching.
You shouldn't squish a cockroach because it spreads harmful bacteria, releases pheromones that attract more roaches, and creates a messy, smelly stain, potentially triggering allergies or asthma, with better, cleaner options like traps or professional pest control available for proper management.
The hardest pests to get rid of often include bed bugs, cockroaches, termites, and rodents, due to their resilience, rapid breeding, ability to hide in tiny spaces, and resistance to common treatments, with bed bugs frequently cited as the toughest due to their elusive nature and insecticide resistance. Eliminating these pests usually requires professional help and persistent, integrated strategies like heat treatment, baiting, sanitation, and sealing entry points, notes.
Ways to Deal with the Cockroach that Got Away
Myth #3: They can see me coming…
The eye of the cockroach is like a compound lens, made of over 2,000 mini lenses that are photoreceptors and allow them to see in complete darkness. If for some reason they don't see you, they might feel you first. Roaches have tiny hairs on their legs that sense and detect movement.
There's no single "rarest" phobia, as they're highly individual, but some contenders for extreme rarity and uniqueness include Hippopotomonstrosesquipedaliophobia (fear of long words), Arachibutyrophobia (fear of peanut butter sticking to the roof of your mouth), Decidophobia (fear of making decisions), and Optophobia (fear of opening one's eyes), often cited due to their specific and unusual triggers, with some studies pointing to Agoraphobia without panic as least reported in large surveys.
The Top 5 Most Feared Bugs