Cockroaches in the south and north like to live in warm, humid, food-rich and crevice places, which are the four basic conditions for their reproduction.
All buildings where people live and live generally have these conditions, so cockroaches have become health pests that infringe on thousands of households. Love of warmth and tide is an important habit of cockroaches.
It is not difficult to find that the kitchen is always the most seriously violated place, whether in restaurants, families, or on trains and ships. Even in the kitchen, they generally like to live near stoves and pools. It is also an important habit of cockroaches to lie down during the day and go out at night.
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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 them, the most important are Mycobacterium leprae, Mycobacterium buffaloes, Shigella dysenteriae, Shigella paradysenteriae and Staphylococcus aureus.
Pseudomonas aeruginosa causing urinary tract infection, Escherichia coli causing urogenital tract and intestinal tract infection, and various Salmonella spreading intestinal diseases and gastritis, such as Salmonella typhi B and Salmonella typhi, etc.
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