Roach Breeding Rate

German Cockroaches reproduce faster than any other common household pest. See how 1 pregnant female becomes thousands in months.

Initial Sighting

Roaches Seen Today1

For every 1 roach you see during the day, there are often 20-50 hiding in the walls.

Females carry their egg case (ootheca) with them until just before hatching, protecting the babies from poisons that don't penetrate the shell.

Roaches

Total projected in 1 Year: 1.

German Cockroaches (Blattella germanica) are an evolutionary marvel. They reach sexual maturity in just 50-60 days.

40 Eggs per Case: A single egg case (ootheca) holds 30-48 eggs.
Protection: Unlike other roaches, the mother carries the eggs until 24 hours before hatching, protecting them from predators and sprays.
Aggregation: They release pheromones in their feces that attract OTHER roaches to the safe harborage, accelerating the gathering.