Content

• Steps
• Advice

German cockroaches are a common cockroach species that lives in homes and restaurants. You can kill German cockroaches in your home or restaurant with gel baits, bait boxes and sticky traps. Boric acid is also an effective cockroach killer. If the infestation of cockroaches is severe, you may need a combination of methods to get rid of cockroaches. Place cockroaches in dark places in the kitchen and bathroom, such as behind the refrigerator, oven, toilet, kitchen cabinets and bathroom drawers.

Steps

Method 1 of 3: Beat bait and trap cockroach

1. 

   Use gel bait. This kind of bait comes in a tube shape and you will squeeze it to apply the gel. Apply gel along the edges of windows and doors, behind trash cans, and along doors of kitchen and bathroom drawers. You should also apply the gel under the sink, around the ends of the plumbing fixture adjacent to the wall in the kitchen and bathroom.
   • Apply gel bait in the crevices and crevices in the drawers of the kitchen cabinet, along the shelves and the overhead wall boards.
   • If you have children and pets in your home, make sure you apply the gel in areas out of reach of children and pets.

2. 

   
   
   Try using a bait box. The bait box consists of a plastic container that contains poison baits. Cockroaches will go through a small hole in the box to get bait. Make sure to place bait boxes against walls and corners where cockroaches often congregate, such as kitchens and bathrooms.
   • Place bait boxes behind fridges, microwave ovens, ovens, toasters, toilets, and electrical appliances in the kitchen and bathroom. In addition, you should also place the bait box under the dishwasher, refrigerator, oven, washer, dryer, and water heater.
   • Identify frequently visited areas of cockroaches by looking for cockroach droppings. Cockroach droppings look like ground black pepper.

3. 

   
   
   Use a sticky trap. Sticky traps contain pheromones that attract cockroaches. Once in the trap, the cockroaches will become trapped and suffocate. You also need to place these traps close to walls and in corners where cockroaches often congregate.
   • Place sticky traps also in the areas where you put the bait box.
   • Do not spray insecticides or cleaning products into sticky bait boxes and traps. These products can stick to the bait and prevent cockroaches from eating.
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Method 2 of 3: Use boric acid

1. 

   
   
   Use a rubber bulb to spray the boric acid. This will help you to spray the boric acid into a thin layer. Squeeze a rubber ball to spray a small amount of boric acid powder along floors and walls in kitchens and bathrooms. You should only spray a thin layer visible. Don't take too much boric acid; otherwise, cockroaches will find out and avoid the area.
   • Do not use a spoon to sprinkle boric acid.
   • You can buy boric acid at a hardware store.
   • Do not spray boric acid on countertops, especially where food is prepared.

2. 

   Spray boric acid between walls. Drill a hole in the plaster wall to fit the top of the rubber bulb. Place the tip of the rubber bulb in the opening, then spray the boric acid in the center of the wall.
   • Cockroaches normally reside between walls, so this is an effective way to kill cockroaches.

3. 

   Combine this method with gel baits and bait boxes, but not in combination with sticky traps. Cockroaches will not be able to return to their "home" when caught in the trap, so the acid will not be able to spread to other cockroaches. advertisement

Method 3 of 3: Prevent German cockroaches

1. 

   Clean surfaces in the kitchen. Clean up food crumbs and clean spilled water on shelves, tables, counter tops, sinks and other kitchen surfaces. In addition, you should also sweep the kitchen floor, dining room, dining areas at least 5 times per week if you cannot scan each day.
   • Try not to leave dirty dishes and food in the sink overnight.
   • Take out trash every night and keep the lid tightly on.

2. 

   Store food in tightly closed containers. Keep flour, sugar, cookies, bread, cereals, savory cakes and other foods in sealed containers. This way the cockroaches won't smell the food and get into the kitchen.

3. 

   Seal holes and crevices. Use baking soda to seal cracks, holes, and crevices along walls in kitchens and bathrooms. Make sure to seal all cracks and crevices around the pipes under the kitchen and bathroom sinks.
   • You can buy baking soda at hardware stores.
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Advice

• You can also try killing cockroaches with a basic mixture of baking soda and sugar. Mix baking soda and sugar in equal proportions and place in a jar cap. Fill the lid with a little more water and place it where you see cockroaches in the kitchen or bathroom. When cockroaches get to the lid of the bottle and eat the bait, the water reacts with the baking soda and breaks their stomachs. This can take several weeks to get rid of cockroaches.
• Check small equipment for German cockroaches to get in. Put the item in a plastic bag and put in the freezer overnight to kill cockroaches, then rinse thoroughly.
• Boric acid has a low toxicity to pets, children, and adults.
• Call the extermination service if the infection becomes severe.