Cockroach is just as strong as Xiaoqiang, another name of cockroach. I don't know if I should use the commendatory word of "strong", because cockroach is really annoying. And it has a very strong reproduction ability. If you find a cockroach at home or in the dormitory, it means that there are at least five cockroaches in your home or dormitory, because it must have settled down there.
The most direct way to kill cockroaches is to step on them. When you see them, you can step on them quickly, accurately and ruthlessly. Although it's a little bloody, it's the simplest and most effective way not to waste human and material resources. Of course, it is also the most widely used method. The only requirement is to be brave.
It's also a good way to use cockroach medicine. It's important to wash your hands after releasing cockroach medicine and pay special attention to the area not mixed with food, and to inform your family or roommates of the location to avoid inadvertent contact. It should be noted that cockroaches are resistant to drugs. If you spray them two or three times, you need to change them again, because they will be immune if you use them too much.
Sprinkle washing powder in the place where cockroaches often appear. When they eat the washing powder, they will die immediately. It's also effective to add soap to hot water and then dissolve it and sprinkle it on cockroaches. These two methods are mainly based on local materials. Washing powder and soap are common household goods and will not do as much harm to human body as chemicals.
When we usually eat oranges or lemons, we should not throw away the skin. When we dry or bake the orange skin or lemon skin, it will not only have a fresh and elegant fragrance, but also play a role in preventing cockroaches. Cockroaches will also stay away from fresh oleander leaves, fresh cucumbers and chopped onions in the cupboard.