Henan Business Daily chief reporter Zheng Chao reporter Zhang Yifei text/photo/video
This is a "timid person be careful" article. Because the protagonist of this article, with his tenacious vitality and frightening deterrent power, has become a fierce character that everyone around the country wants to kill and then fast - cockroaches.
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Located in the Central Plains, cockroaches are getting bigger and bigger. Originally, Henan saw the flattened northern cockroach, but now there are also flying, large southern cockroaches.
Why does the "Southern Xiaoqiang" that makes the macho man cry frequently appear in the Central Plains? Are you migrating north due to climate change? If you are mentally prepared and have overcome your discomfort, let's talk about the story of Henan and "Xiao Qiang".
<h1 class="pgc-h-arrow-right" data-track="6" > encountered a "Small Qiang" frontal critical hit in the early morning, and Zhengzhou Hanzi screamed and drowsiness</h1>
What makes the northern macho scream and "lose their color"? It is the Southern Cockroach.
At four o'clock in the morning one day, Li Haozhi, a citizen of Zhengzhou, was confused and confused, and when he was convenient in the bathroom, he saw a large black cockroach about one-third the size of a palm.
"It's running so fast!" It's scary! Li Haozhi is an "indigenous" in Zhengzhou, living for more than 20 years, this is the first time to see such a large cockroach in Zhengzhou, "scared awake, no sleep, I boiled water to burn cockroaches." ”
Coincidentally, Han Ge, a Zheng drift girl who rents a house in Zhengzhou, came to a big cockroach in a dark and windy night in a month, which made her still have a palpitation, "A big worm suddenly flew in my house, and I thought that a cicada got lost and ran to my room." But when the "cicada" was tired and lying on the ground, Han Ge felt that something was wrong, "I fixed my eyes on it, the outline of the cicada is not like this!" ”
In an instant, Han Gehun's hairs on her body stood up, and she let out a broken roar, "Cockroach! Growing up, I lived in the north and never saw such a big and flying cockroach! ”
It is not Li Haozhi and Han Ge who are flirtatious, basically, every once in a while, there are discussions about cockroaches in the north and south on Weibo hot searches.
In everyone's impression, northerners are tall and burly, southerners are thin, and this "stereotype" is logically substituted into the body shape of organisms in different regions.
However, the size of the cockroaches in the north and south is really dropped, the south cockroach is big, fierce, and flying; the northern cockroach is so small that it even makes people feel cute.
Zhang Yang, a girl in Zhengzhou, went to school in the south, and as soon as she entered the dormitory, she received a "meeting gift" - a black cockroach at the foot of the bed that had been dead for a long time, like a little finger, "scared and crying." Zhang Yang said, "I think that many northerners have a fear of treating the big cockroach in the south from their bones." ”
<h1 class="pgc-h-arrow-right" data-track="16" > Since the 1990s, the southern cockroach has become a "regular" indoor visitor in Henan</h1>
People who have not seen cockroaches are happy, because people who have had head-to-head confrontations with cockroaches have psychological shadows.
On Zhihu, some netizens asked: Is there no cockroach in Henan? There are 45 answers to this question, and those who have seen cockroaches in Henan and those who have never seen cockroaches are not the same.
Some people have lived in the countryside of Xinzheng since childhood, do not know what cockroaches are, until they go to Wuhan to go to college; some people blew themselves up more than 10 years ago in Zhengzhou to open a restaurant, the kitchen is a cockroach disaster area, every day after work to take medicine the next day to see many dead cockroaches; some people rationally online, analysis said that in Henan has not seen cockroaches, either from childhood to live in a new house, or the home is not heated in the winter room temperature approaching the freezing point, cockroaches can not survive.
Xiao Qiang who was killed (photo provided by the interviewee)
"Kill for 300 yuan at a time, and guarantee that there will be no cockroaches within a year." Despite this, Han Ge still left the "cockroach sequelae", every time he pushed open the toilet door, he had to retreat tactically, probe his head to confirm that there were no cockroaches on the ground and then enter; when wearing shoes, he had to turn the shoes upside down and bump again, and then dare to wear them.
Customarily, everyone divides cockroaches into two categories, the northern cockroach species is the German cockroach, small, flat and long body; the southern cockroach species is the American cockroach, with wings, the size is larger, almost the size of a human thumb.
"The German cockroach is indeed smaller than the American cockroach." Wang Gaoping, a professor at Henan Agricultural University, told the Henan Business Daily reporter, "The distribution characteristics of cockroaches in different regions are different. ”
Wang Gaoping introduced that since 1991, the more common indoor cockroach varieties in Henan Province include German cockroaches, American cockroaches, and black-breasted cockroaches, "From the geographical distribution of cockroaches in Henan, Xinyang City is the most serious, followed by Luoyang and Jiaozuo, and shows a trend of gradually decreasing from south to north; cockroaches are more common in hospitals and hotels, followed by non-staple restaurants and residential residences." ”
From left to right: American cockroach, Japanese cockroach, German cockroach, brown-spotted cockroach (image from the Internet)
The life force of cockroaches is too tenacious, and they can be called "fertility machines with mod feelings".
Female cockroaches can produce dozens to hundreds of egg sheaths in their lifetime, and an egg sheath often contains dozens of cockroach eggs. They also have a skill, that is, mating once and finally producing eggs.
Therefore, there is a widely circulated saying that "the little strong who cannot die" has been widely circulated. The default view is that if you find a cockroach in your home, there are actually hundreds of cockroaches hiding in the shadows.
<h1 class="pgc-h-arrow-right" data-track="27" > the fact that cockroaches will follow the courier box and run thousands of miles to your home</h1>
And it is. A few days later, when Han Ge found that two cockroaches appeared in the house again, she decided to take the initiative and decisively contacted an insecticidal company to ask someone to come to the door to kill cockroaches.
The staff of the insecticidal company, carrying a liquid bucket, sprayed medicine along all the walls, gaps and other areas of the home, and said that it was a biological agent, colorless and odorless, and had no effect on people, but it was "poison" for cockroaches.
Why are there more and more cockroaches in the south? Henan Business Daily reporter contacted the above-mentioned insecticidal company, the relevant person in charge of the company Ms. Zhao said that more than a decade ago, when she first did this business, she was able to find large cockroaches indoors, "we are not surprised."
However, relatively speaking, cockroaches used to appear in restaurants and other places, and in residential buildings over the years, she believes, "Regional exchanges have increased, referring to which cockroach or cockroach eggs, followed by plastic bags, courier boxes and other things, from the south to the north, slowly to the residents' homes." ”
In this regard, Yuan Zhongliang, director of the Institute of Disinfection and Vector Biological Control of the Zhengzhou Municipal Center for Disease Control and Prevention, expressed a similar view, "Now that the logistics industry is developed, the goods may be carried and transmitted during transportation. ”
Cockroaches prefer dark, humid, high temperature indoor environment, will it be because of the warming climate, so that the cockroach family to achieve "north migration"?
"Not really." Yuan Zhongliang analyzed, "The climate in the south is more suitable for cockroach activities, especially in summer, while the humidity in the north is small, and the range of cockroach activities is generally public places, such as restaurants." ”
He especially reminded that cockroaches carry more than 40 kinds of pathogens, is the culprit of many infectious diseases, need to take more precautions, if you find cockroaches at home, do not step on, because the eggs of cockroaches do not die, "It is best to take boiling water, but cockroaches love to drill seams, move fast, usually must pay attention to hygiene." ”
<h1 class="pgc-h-arrow-right" data-track="37" > business opportunity: raising billions of cockroaches, can be medicated and can eat kitchen waste</h1>
The daunting cockroach, objectively speaking, still has many advantages. For example, the American cockroach can be pharmaceutical.
Liangshan, Sichuan Province, has one of the world's largest cockroach factories. From birth to death, from cradle to grave, farms provide five-star closed-loop service to 6 billion American cockroaches.
And the ultimate destination of these cockroaches is to become a drug you may have drunk - a new liquid for rehabilitation. This drug can accelerate wound healing, and has a good effect on relieving stomach bleeding, burns, mouth ulcers, etc.
In addition to pharmaceuticals, cockroaches have a wide range of diets, and also let people with hearts see business opportunities. There is a cockroach factory in Zhangqiu, Jinan, Shandong Province, where American cockroaches are farmed, and they eat 5% of their own food waste every day.
The person in charge of the factory introduced to the Henan Business Daily reporter that at present, the factory has about 1 billion cockroaches, which can digest 50 tons of kitchen waste in Zhangqiu District every day, "We are also establishing a national model project for the treatment of kitchen waste by the American cockroach biological treatment project, and after the project is completed, the daily treatment scale of kitchen waste will reach 200 tons." ”
At the end of the life of the American cockroach, after the insect body is sterilized and dried at 300 ° C, it can be made into a protein feed additive, the egg sheath is used to hatch the new force, and the feces are used as organic fertilizer.
Although the current income situation is not easy to disclose, but public information shows that this kitchen waste treatment center, calculated by the daily treatment of 100 tons of garbage, each ton of government subsidies of 208 yuan, the annual production of insect protein feed up to 2433 tons, in addition to the fixed investment of 30 million yuan and labor, water and electricity costs, a year can net income of about 37 million yuan.
The person in charge said that it is negotiating cooperation with customers in many parts of the country such as Henan to negotiate cooperation with the American Cockroach Biological Treatment Kitchen Waste Project, but it has not yet been finally landed.
In other provinces, the cockroach business is growing, what is the situation in Henan?
Searching for "cockroach farming" on the enterprise investigation, there are 14 cockroach farming related enterprises in Henan Province, of which 6 are abnormal or have been cancelled. The head of a cooperative in Zhoukou said that she did not do this business five or six years ago, and Ms. Zhao of Shangqiu also changed careers two years ago, "No one came to take care of it, the business is not very good." ”
(Edited by Ji Qianqian, Shi Shangjing, Lu Ruitian)