Things you wished you didn’t know about common household pests.
- If a cockroach loses its head, it can live for about 2 weeks since it has other “brains” on its legs. It finally dies because it has no mouth to get food and water.
- Generally, cockroaches can live for four weeks without food, but cannot survive for more than two weeks without water.
- You‘ve probably heard the story about cockroaches surviving a nuclear war: we die but they live! Radiologists have found that humans can safely withstand a one-time exposure of 5 rems (A “rem” is the dosage of radiation that will cause a specific, measured amount of injury to human tissue). A lethal dose is 800 rems or more (people are exposed to about 16 rems during their lifetime). Insect researchers have found that cockroaches can tolerate a much higher dose. The lethal dose for the American cockroach is 67,500 rems and for the German cockroach it is between 90,000 and 105,000 rems! In truth the amount of radiation that cockroaches can withstand is equivalent to that of a thermonuclear explosion.
Bedbugs (Cimex lectularius) are small, wingless insects found all over the world. They are nocturnal parasites, which mean they rest during the day and are active at night feeding on the blood of humans. Bedbugs prefer to hide in bedding and on mattresses where they have access to a food source. Bedbugs have highly developed mouthparts that can pierce skin. Their bite is initially painless but becomes itchy and swells into a reddened wheal after a while. Unlike the random pattern of bites made by mosquitoes, bedbugs tend to leave orderly rows. Although bedbugs can harbour diseases in their bodies, transmission to humans is considered highly unlikely. For this reason they are not considered dangerous, unless a person is allergic to them. However, their presence can be distressing and their bites can be highly irritating. Signs to look for: Commonly, the first sign of bed bug infestation is the appearance of small brownish or reddish dots on bed linens. These are faecal spots or droppings on the surface of linens from these bugs.
rates & mice
- It has been estimated that 30 baby rats are born every second, compared to one human being.
- Rats can bite repeatedly at the rate of six bites per second.
- Next to man, rats are considered to be the most destructive vertebrate animals on earth.
- Female house mice give birth to 6 young ones about 21 days after mating. She is ready to mate again in two days. She can produce 6 to 10 litters a year. Her young will be ready to mate in two months.
- The word “mouse” can be traced to the Sanskrit word “musha” which is derived from a word “to steal”.
- Rats are omnivorous, eating nearly any type of food, including dead and dying members of their own species.
- Rats memorize specific pathways and use the same routes habitually