German Cockroaches

What do German cockroaches look like?

German cockroaches are small compared to other common cockroach species, usually about half an inch long. They’re light brown to tan with two dark, parallel stripes running lengthwise on the section just behind their head—this is their most recognizable feature. Like other roaches, they have six spiny legs, two long antennae, and two short rear appendages called cerci.

One thing to note: they look very similar to Asian cockroaches. The main difference is that German roaches have slightly shorter wings and rarely fly.

Nymphs (young roaches) are wingless and start out pale right after molting, then darken to almost black with a light stripe down the back as they grow.

Are German cockroaches harmful?

Yes, they are. German cockroaches often travel through unsanitary areas and feed on decaying materials. As they move about, they often pick up bacteria, viruses, and other pathogens that can transfer to and contaminate food, dishes, and kitchen surfaces. Roaches can also cause health issues like food poisoning.

They’re also a major source of allergens. Their droppings, saliva, and shed skin can trigger allergic reactions and asthma, especially in children or anyone with respiratory issues. In fact, heavy infestations are linked to increased asthma-related hospital visits.

What attracts German cockroaches?

They’re drawn to four main things:

• Food: They’ll eat just about anything—crumbs, grease, pet food, sugary spills, and even non-food items like soap or glue.
• Water: They need moisture to survive, so leaky pipes, dripping faucets, and standing water are big attractants.
• Warmth and humidity: This is why kitchens and bathrooms are their favorite spots.
• Shelter: They look for tight, dark spaces to hide and breed.

How do German cockroaches enter homes?

Most of the time, they hitchhike. They hide in groceries, cardboard boxes, used furniture, appliances, or even electronics and get carried inside.

In apartments or condos, they can move between units through wall voids and shared plumbing. 

Occasionally, they enter through cracks, gaps, or under doors—especially if there’s a heavy outdoor infestation nearby.

Where do German cockroaches typically hide?

German cockroaches love warm, humid areas close to food and water, and they squeeze into the smallest cracks. Common hiding spots include:

• Kitchens: Behind or under appliances like stoves, refrigerators, and dishwashers; inside cabinets, drawers, and pantries; under sinks, around plumbing, and even inside small appliances like coffee makers.
• Bathrooms: Under sinks, behind toilets, and near shower drains.
• Laundry rooms: Behind and under washers and dryers.
• Electronics: The warmth of TVs, computers, and modems attracts them.
• Cluttered areas: Stacks of cardboard, newspapers, or clothes make great hiding spots.

How fast do German cockroaches reproduce?

Extremely fast. German cockroaches have the quickest reproductive cycle of any common cockroach species. A single female can produce hundreds of offspring in her lifetime, which is why even a small infestation can explode in a short time.

How do I get rid of German cockroaches?

For complete elimination of a German cockroach infestation, professional pest control is the way to go. At Harbor Pest Control, our highly trained and fully licensed pest control pros are ready to to solve your roach problem. Our home pest control services include accurate identification and proven treatment methods. We also provide commercial pest control services that eradicate cockroach activity. Contact us today to find out how we can help you! 

How can I prevent German cockroaches from infesting?

Preventing a German cockroach infestation requires a diligent and multi-faceted approach that focuses on sanitation, moisture control, and sealing entry points. For persistent infestations or the highest level of protection, professional pest control services are recommended due to the rapid reproduction rate and resilience of German cockroaches.