Roach Treatment

How to Kill German Cockroaches



How to Kill German Cockroachs

German cockroaches are pests that can be found across most of the US, as well as the rest of the world. Once you have an infestation it can be difficult to completely remove their presence and not have them return.

It is possible to remove them from your home however. If you’re looking for ways on how to kill German cockroaches, this article will cover all the ways known to deal with these horrible little insects.

If you have German cockroaches in your home, firstly you should know that it’s not necessarily your fault. They enjoy feeding on scraps of human food. Hence why they are most commonly found in kitchens. They can feed on almost anything to survive, the food debris will bring them to an area.

Couple this with the warmth, water supply and hiding places of a human occupied building and can understand why they take up residency in populated buildings.

Recognizing German Cockroaches

There are several different species of cockroach that invade our homes. German cockroaches are tan or light brown in color when adults. They have two noticeable strips running from their head to back on their pronotum which helps to identify them.

Younger roaches are black, but they have the same identifiable strip running across their bodies. German cockroaches are able to fly, but are much more commonly seen running around. They grow up to a length of around 16mm, which I’m sure you’ll agree is more than long enough.

These roaches reproduce at a staggeringly fast pace. If you think you have seen one in your home, or are sure you’ve seen one, you need to act fast and start taking action now.

How to Kill German Cockroachs1

Photo by Flickr

Preventing and Managing an Infestation

Prevention is always the best cure. So safeguarding your home against roaches and keeping rooms clean and clear of the kind of debris that attracts them is very important. However, as I mentioned earlier it’s not always your fault if roaches start appearing. Sometimes it’s just unavoidable.

However, once you have spotted German roaches in your home, it’s time to start preventing the situation getting worse. Try and find out where they are getting into your home. Check along all your walls for small holes, and check the parameter outside your home for roaches hiding in rubbish piles or under rocks.

Once the infestation has begun in your home you are going to need to cut off the supply of new roaches, as well as exterminating all the roaches living in your home. Roaches are very good at surviving; they will thrive on the smallest of food sources. If there isn’t any food scraps, they will feed on paper, soap, dirt, anything they can find.

How to Protect Your Home from German Cockroaches

It’s very difficult getting rid of a German roach infestation. German roaches are native to warm and humid climates, so if you live in an area with this kind of climate you are going to find it even more difficult.

Firstly you need to keep your house as clean and clear from clutter as possible. This means disinfecting all the surface areas, floors, cupboards, everything. You need to make it as difficult as possible for roaches to find a food source. Cutting off the food source slows down their reproduction considerably.

Another measure to take is to use a dehumidifier in your home, especially if you live in a humid climate. The less humidity in the air the less comfortable the roaches will be. You can cover the windows and keep the door shut to lower the temperature in the room too.

These measures will make it a lot less likely for roaches to explode in numbers, and make it a lot less appealing for new roaches. However, when it comes to completely removing the roaches I will outline some steps to follow below.

How to Kill German Cockroaches

To kill these roaches and give yourself the best chance that they will not return, there are a few steps to follow. I recommend following all the steps in their entirety, roaches are robust and will adjust to their surroundings given a chance, so it’s best not to cut any corners.

How to kill german cockroaches 2

Step one – Remove their food supply.

Food is the main reason roaches infest an area and do not leave on their own accord. So your first priority is to remove all possible food sources from the areas you have seen the roaches. If they are in your kitchen, this means moving all your food to another place in your home and not cooking in your kitchen until the problem has been dealt with.

Next clean and disinfect every surface in the room you’re treating. Roaches can find food smaller than our eyes can see, so clean everything regardless if it looks clear. Remember that roaches are more active at night, so do this later in the day if possible.

Step two – Make sure everything is dry.

Roaches thrive in humid conditions and need water to survive. Check for any leaks or damp areas. Don’t forget to touch pipes to see if they are wet to the touch, if so give them a wipe with a towel in the evening.

Step three – Use effective poisons and baits.

Once you have cut off their food and water supply you need to start putting down baits and poisons to kill the roaches. The most effective types are the long lasting baits. These attract the roaches, then infect them with poison that they trek back to their nests.


One of the best on the market is this Cockroach Gel Bait from Advion. It comes with some syringes for easy application, and by just simply applying it to the areas you see roaches you will kill them.

It takes around a week from the first application to start noticing a dramatic improvement. Within two weeks of using this product you should be free from roaches.

Following the above advice on how to kill German cockroaches will prevent more roaches and make it difficult for them to live in your home and will ensure they do not return.

We also have a FREE Search engine here on the blog if you need to get in touch with a local roach exterminator. Just hop on over to the Free Pricing Page and get a free quote. You can choose the time and means of how to be contacted. You can request an email or phone call, the choice is yours and you can specify day. Don’t forget to ask questions so you understand what is being done and what it is going to cost. So, if you can’t or don’t fell like using our guide on how to kill German cockroaches, you can always use our Free Pricing Guide.