Domestic cockroaches are orange-red, German cockroaches are dark gray and black, with a wide head and a narrow tail! The following is some information about Xiao Qiang:
According to experts, Blattella germanica has wings but can't fly. It is most active at room temperature of 24-32℃, and computers and fax machines are easy to dissipate heat, so it has become their best refuge. Moreover, its volume is very small, and adults are only about 1.2 cm long, so they can drill into the machine at will. They propagate in sophisticated machines, and their excrement and hulling will seriously pollute the machines and even cause short circuits.
According to the analysis, the main reason for the proliferation of Blattella germanica is that office workers eat in the office. Many girls like to eat snacks at work, and it is difficult to clean cookies and chips. In addition, there are many documents in the office, and cleaners are generally not allowed to clean them up. The accumulation of debris has formed a hotbed of cockroaches.
With the continuous improvement of urban living environment, periplaneta fuliginosa, which was once rampant in Shikumen and Sange, has shown a downward trend, and Blattella germanica adapted to the office environment has become the dominant insect species. It is particularly rampant after 2002, and currently accounts for 80% of cockroaches in Shanghai.
Another characteristic of Blattella germanica is its rapid reproduction, and it only takes 60 days to breed a generation. After repeated spraying, the remaining cockroaches developed drug resistance, so the power of ordinary cockroach killers was limited. In addition, liquid cockroach killer should not be sprayed on precision machines such as computers and fax machines. More effective cockroach killing work must be completed by professional cockroach killing units, which use glue bait, mutual aid and granules. Pay attention to hygiene after cleaning, or Blattella germanica will make a comeback soon.
At present, Blattella germanica has become one of the three major drug-resistant pests in the world, which can spread more than 40 kinds of bacteria such as parasite eggs, hepatitis B virus and polio. If you want to eliminate cockroaches in office buildings, you must try not to eat in the office. For office buildings with catering services, the dining area should be strictly separated from the office area to prevent stairs and elevators from contacting restaurant garbage and reduce the possibility of cockroaches spreading to the whole building. Special attention should also be paid to killing cockroaches when handling office appliances to avoid bringing cockroaches into the new environment through old appliances.
Blattella germanica is a kind of cockroach, which is difficult to kill even if it is soaked in liquid medicine. What is even more incredible is that German cockroaches have appeared everywhere except China and Tibet.
As for why it is called German cockroach, it may be that this cockroach was first discovered in Germany. According to experts, Xiao Qiang is a veritable "strong man":
It can survive in vacuum for at least 10 minutes.
It can swim in the water for 5 minutes without breathing.
Its crawling speed is definitely not slower than that of human walking.
When you trample it into pieces, it can still stretch its legs and struggle 10 minutes.
A millimeter or even a half millimeter gap, it is effortless to go in.
Nymphs (small cockroaches) under the age of three generally don't go out of the hole, and they eat the feces of big cockroaches when there is no food.
If it is a local cockroach, scrape the floor with a ten-cent magic medicine pen and sweep the floor the next day; However, the German cockroach, an "exotic", is immortal. If you don't take cockroach medicine, you won't die even if you take it. The strongest spray can't kill it, and it will make it more resistant to drugs.
From the fossil specimens, Blattella germanica can be traced back to 500 million years ago and is considered as the oldest insect on the earth. German Xiao Qiang eats everything, paper, garbage and paste. As long as you can imagine almost all organic matter, statistics show that it may eat more than 3700 kinds of sundries.
The body length of Blattella germanica ranges from 65438 0.2 cm to 65438 0.4 cm. Its obvious feature is that there are two black longitudinal stripes on the chest plate, and the number of cockroaches can reach 35,000 every year. Blattella germanica can spread more than 40 kinds of bacteria, such as parasite eggs, hepatitis B virus, polio and aflatoxin related to liver cancer. The reason for the rapid proliferation is a bit incredible: the popularity of air conditioning. It is found that Xiao Qiang likes to be warm in winter and cool in summer, and it is most active at room temperature of 24-32 degrees Celsius.
Blattella germanica goes out for food at night, but hides in cracks in various places during the day: because of its flat body, it can pass through the gap of 1.6 mm and spread through the gap between walls and doors and windows; German Xiao Qiang likes to work in office computers, photocopiers, power outlets and other places.
Killing German cockroaches by indigenous methods;
Cockroaches in Germany are small, reproduce quickly and are difficult to kill. They are one of the three most resistant pests in the world at present, and their drug resistance is very strong. So it is almost impossible to poison it with drugs, but the indigenous method of "inviting you to the urn" has a very good effect, which does not cost money and pollute the environment. The solution is actually very simple, that is, a bottle with a height of 10 cm. This bottle is very important, which directly determines the success or failure of cockroach killing. Whether this bottle can be used together needs to be tested. First, catch two strong cockroaches and see if they can climb up. The bottle that can't climb up is the right bottle. Don't kill Xiao Qiang in the bottle, but also put some broken cakes in it to feed him. This cockroach doesn't sound an alarm like a mouse, so that its kind won't be fooled. Other cockroaches will climb into the bottle when they see their companions munching happily. It is not a problem to put dozens of cockroaches in a bottle in one night. We'd better pave the way for Xiao Qiang to get into the urn smoothly.
What should these "prisoners of war" do? If you can't spray the medicine into the bottle, you can't use it after smelling it; Second, you can't use boiling water, and you won't come if it's tasteless. It is best to feed fish and birds to make the best use of them. Also, you'd better not forget to leave two big ones as bait.