2. Take one piece of borax and one piece of flour, add a little sugar, mix well, and make balls the size of rice grains, and scatter them in the places where they haunt, and they will be poisoned after eating.
This is a way to kill cockroaches with hot soapy water. Adding a bar of soap to 4 liters of hot water, dissolving it and spraying it directly on cockroaches can effectively kill cockroaches.
4. It is the way to get rid of cockroaches with soda. Mix sugar and baking soda in half and put it in the place where cockroaches haunt. After about 3- 14 days, cockroaches will disappear.
5. It is a boric acid mopping method to prevent cockroaches. After dissolving a proper amount of boric acid in hot water, wipe the floor with a mop or rag. After drying, white boric acid crystals will penetrate into the cracks in the floor to prevent cockroaches and ants.
6. It is the cockroach prevention method of orange and lemon peel. After the skins of oranges and lemons are dried or dried, they are placed in various cabinets, which not only have the function of fragrance, but also have a certain effect of preventing cockroaches.
Seasonal fluctuation
Like other insects, the activity and reproduction of cockroaches are affected by temperature. In general, the seasonal fluctuation of cockroaches is the change of population or community quantity caused by temperature change. Cockroaches can carry eggs of pathogenic bacteria, viruses, protozoa, fungi and parasites, and can be used as intermediate hosts of various worms.
It has been proved that cockroaches carry about 40 kinds of bacteria that are pathogenic to vertebrates, among which the important ones are Mycobacterium leprae, mice suffering from bubonic plague, Shigella dysenteriae and Shigella paradysenteriae with children's diarrhea, Staphylococcus aureus causing boils, Pseudomonas aeruginosa causing urinary tract infections, Escherichia coli causing urogenital tract and intestinal tract infections, and various Salmonella that spread intestinal diseases and gastritis, such as Salmonella typhi B and Salmonella typhi.
Cockroaches can carry a variety of pathogenic bacteria that cause food poisoning, such as Pseudomonas aeruginosa and Escherichia coli, as well as Clostridium perfringens and Streptococcus faecalis.