Do Cockroaches Lay Eggs When Killed?

Cockroaches are capable of laying up to 20 eggs at a time.

When they’re ready to hatch, they’ll need to breathe. For this reason, they’re most likely to live in the kitchen and bedroom.

You can kill cockroaches by spraying them with insecticides.

So, do cockroaches lay eggs when killed?

Cockroaches do not have eggs. When cockroaches mate, the male inserts its sperm into the female’s genital opening.

The female then deposits her eggs into a brood chamber, where they develop before hatching. If the female dies before hatching, her babies will starve to death.

So, when cockroaches are killed, it’s because they’re starving to death or because they’ve run out of space. This is why roaches don’t lay eggs.

Do Cockroaches Lay Eggs When Killed?

Disposal Can Kill The Cockroach Eggs

Cockroaches can have a long lifespan; they typically live for 6 months to a year.

They usually breed every 3 months, and a single female can produce up to 500 offspring in a single year. This makes them one of the most populous species on the planet.

If left unchecked, they can quickly overrun your home. However, there are ways to get rid of them.

One of the most effective is to dispose of their eggs. Cockroaches lay their eggs in clusters called egg cases.

These egg cases sometimes contain up to 100 eggs, and roaches can lay more than one egg case per day. These egg cases are usually sticky, so it can be difficult to get them out.

If you spot a single egg case in your home, it’s best to dispose of it as soon as possible.

If you do dispose of it, make sure you take proper precautions so you don’t spread the eggs around your home.

Not Ready To Hatch

Cockroaches are one of the most disgusting creatures on the planet.

Not only do they spread disease, they also smell bad and crawl around your food.

Unfortunately, cockroaches reproduce quickly, and unless you have a cockroach exterminator, you’ll never get rid of them completely.

No Safe Hatching Spot

Cockroaches lay eggs when a male and female mate. This is unfortunate because it causes a lot of damage to homes and buildings.

Furthermore, cockroaches often carry diseases. That’s why it’s important to get rid of them as quickly as possible.

However, it’s very difficult to kill cockroaches, as they can survive almost anything.

Eggs Were Crushed

A team of scientists from the University of Illinois has discovered a strange phenomenon where cockroaches lay viable eggs when crushed.

Cockroaches normally lay eggs only when sexually mature. However, the researchers found that crushing the egg-bearing female cockroaches causes them to lay eggs immediately.

Furthermore, the researchers found that the eggs were viable and could hatch. However, the offspring are deformed and not capable of surviving on their own.

The researchers posit that the crushed cockroach signals to her body that the egg is already inside, which causes her to lay eggs immediately.

The offspring then develop normally but die shortly after birth.

Because cockroaches are such hardy creatures, people may not notice this weird phenomenon unless they crush a cockroach.

However, scientists hope that the discovery will lead to a better understanding of reproduction in cockroaches and lead to new methods for pest control.

Some Roaches Keep the Egg Case inside them

Some roaches have an egg case inside them, which protects the eggs until they hatch.

The roach’s egg case is made of chitin, the same material as insect exoskeletons. The egg case is generally attached to the roach’s abdomen, but there are a few species whose egg case is on their heads.

The egg case usually contains eight to 20 eggs, which hatch in 14 days. After hatching, the nymphs crawl out of the egg case and molt several times before maturing.

Most roaches die within a few weeks after mating, but some can live for a year or two.

Why Roaches Can’t Lay Eggs When Killed?

Only Mature Oothecas Will Hatch

Roaches lay eggs in oothecas.

These oothecas mature and then hatch, allowing roaches to grow into adults. However, only mature oothecas will hatch.

Therefore, if you kill a roach quickly, it may not have a chance to lay eggs. This is why it’s important to kill roaches quickly when they appear.

It Matters How the Roach Is Killed

Roaches are annoying and disgusting pests that can ruin food, spread disease, and leave an unpleasant odor behind.

However, getting rid of roaches can be a difficult process. Fortunately, the roach trap is a great option for getting rid of roaches.

First, the roach trap is a simple device that is easy to use and inexpensive. Second, the roach trap doesn’t kill roaches instantly, resulting in fewer dead roaches and a reduced risk of disease.

Third, the roach trap can be used anywhere in and around the house. Finally, the roach trap is eco-friendly, as the trap is reusable and biodegradable.

To get rid of roaches, the roach trap is the best option.

How To Kill A Pregnant Cockroach Safely?

There are approximately 4,400 species of cockroaches in the world, but only 30 species are considered pests.

Of these pests, the Madagascar hissing cockroach is the most destructive.

It can damage your furniture, electrical wiring, and even pose a health risk by contaminating food with its feces and saliva.

Luckily, there are several methods to kill a pregnant cockroach safely. First, try pouring some cockroach bait or gel on the cockroach, then seal off any areas the cockroach can get into.

This includes cracks and crevices, as well as under appliances. The cockroach will eventually starve to death.

Another method is to flush the cockroach down the toilet. However, this only works if the cockroach can fit in the toilet’s drain hole.

Otherwise, the cockroach will likely die in the pipes. Finally, you can hire an exterminator to kill the cockroach for you.

However, this can be expensive and ineffective if the cockroach gets out before dying.

Also Read: Do Roaches Like the Cold?


In conclusion, cockroaches do not lay their eggs when they are killed.

In fact, the eggs are fully developed before they hatch.

Thus, killing a cockroach will not save your home from the infestation.