Chapter 69 The situation of further expansion (starting to explode today
Generally speaking, there are usually two forms of use of dicloprid:
Intermediate powder and gel bait.
Among them, intermediate powders are mostly used in the agricultural field, with large quantities and wide coverage, but the insecticidal efficiency per unit volume is relatively limited.
After all, insecticide efficiency and cost are directly linked. The agricultural field refers to cultivated land or fruit trees, ranging from two or three acres to hundreds or thousands of acres.
If they really buy that kind of high-efficiency pesticide, farmers' income won't be enough to spend on pesticides.
In addition to intermediate powders, most of the dicloprid commonly used in daily life are gel baits, which are high-specification and high-concentration polymeric insecticides.
For example, Bayer's Bymushi can theoretically kill more than fifty cockroaches with 0.2 grams.
This is true for the third-generation dicloprid, let alone the fifth-generation dicloprid developed by Xu Yun and others.
150 ml of water is 150 grams. The density of the fifth-generation pencloprid gel bait is much greater than that of water. The total amount of gel bait contained in two 150 ml syringes is about 700 grams, that is, seven taels per tube.
Use this amount of glue bait to plaster the wall
You can simply imagine what the concept is.
More importantly, since the University of Science and Technology is located in the urban area of Luzhou, the drainage facilities of the entire campus must be distributed from the inside to the outside.
Among them, Building 14, located on the edge of the East District, is a large exit node that gathers multiple sewage pipes in the school. The number of cockroaches around it is several times greater than in other areas.
Therefore, the seriousness of the entire situation is far higher than what Chang Licheng saw in the dormitory.
When Xu Yun arrived at Building 14, the entire dormitory was already surrounded by a large number of onlookers who had come from nearby dormitories, and they had a tacit understanding to maintain an effective distance of thirty or forty meters from Building 14.
Xu Yun struggled to get out of the crowd of onlookers, and saw that in the center of the venue, in the open space outside the dormitory building door, there were several dormitory wardens and inspectors who came on duty overnight.
Through the bright flashlights in their hands, one can vaguely see an extremely scary scene:
Students who have lived in dormitories should know this.
Each dormitory building usually has three to five white sewer pipes with a diameter of about 15 centimeters, depending on the scale of the building, laid outside. Most of them are located between the walls where two dormitories meet.
At this moment, countless cockroaches were slowly climbing along the outer walls of several sewer pipes from bottom to top.
Then turn left at the edge of the third floor and climb into the fourth floor through the window at the corner of the stairs.
The rest simply poured in from the gate on the first floor and rushed to the fourth floor in a dense crowd.
Of course, there must be something going in and something going out.
For example, some cockroaches have been poisoned and entered a state of excitement. They spread their wings high and flew out of the window, followed by a lot of people of the same sex.
Under the night sky, the people watching outside seemed to be Cao Cao's army, which was blocked by Ciao Fei at Dangyang Bridge.
Mixed in with this frightening scene were the closed doors and windows of the dormitories, as well as the bursts of strange screams that could be heard from time to time.
See this situation.
Even the night patrol team of the University of Science and Technology, which has more than ten years of security experience, is looking at me and me, standing still at a distance with flashlights, looking confused and at a loss.
The dormitory lady on the side had sharp eyes. When she caught sight of Xu Yun who finally got out of the crowd, she suddenly looked overjoyed:
"Assistant Xu, are you here too? Come and see, what's going on?"
Xu Yun walked to a few people with a wry smile on his face, looked up at the dense cockroaches:
"Sister Liu, how long has this situation been going on?"
Sister Liu is a middle-aged woman with a somewhat bloated figure. She and her husband have been housekeepers for more than ten years. When she heard this, she looked puzzled and frightened:
"I don't know either. I was cooking for the boys in 203 at that time. I heard a strange scream from somewhere, and then I saw a bunch of cockroaches scurrying upstairs. What a formation."
Open flames are prohibited in the dormitories of HKUST, so some dormitory managers will prepare some side dishes such as chicken offal on weekdays. If students want to drink some beer or something in the dormitory on weekends, they can order one or two dishes at a very affordable price, which is also regarded as a dormitory.
A little extra money.
It turned out that Sister Liu was continuing her private work. When she realized something was wrong, she quickly turned off the stove and ran out with her husband.
When Xu Yun heard this, he couldn't help but sigh:
"Sister Liu, have you contacted the school leaders?"
"I just made a call with several counselors and the leaders of the hospital branch. Dean Tian is on his way here."
"Dean Tian? Hasn't he rested yet?"
"No, they said they were doing some kind of experiment. When they heard the news, they told me they would be at the scene immediately. They also said there was no need to call the fire brigade."
When Xu Yun heard this, he couldn't help but feel relieved.
Looking at the entire USTC, apart from Qiu Sheng and several members of the research team, the only person who could guess the inside story in a short time, apart from Xu Yun himself, was Tian Liangwei.
If it were another school leader or even a school leader, what big trouble would have occurred if the guarantees were not fulfilled?
Those with a relatively stable mentality may be able to handle it calmly. If they meet some more emotional leaders, they may think in the direction of earthquakes or even demonization. After all, most schools are built on cemeteries. In fact, many schools
Leaders are very superstitious.
Basically, among the top ten campus legends of every school, they will have something to do with Ah Piao.
Just like that, about twenty minutes passed.
Tian Liangwei finally rushed to the scene with his assistant.
As soon as he separated from the crowd and walked outside, Tian Liangwei felt his scalp numb. Looking at the dense cockroaches, his hometown dialect came out:
"Niang Xipi, there are so many cockroaches? Xiao Xu, what did you do?"
Xu Yun, who had been waiting here for a long time, sighed quietly and described the whole process in detail, trying to put the responsibility on himself as much as possible:
"That's pretty much it. Director Tian, this is mainly my responsibility. I didn't explain the dosage issue to Li Cheng and the others."
Tian Liangwei frowned at the beginning, but as he listened, the expression on his face gradually became a little weird:
"I can't blame you entirely. After all, it's still a problem of poor information. Those two live treasures probably searched online for cloprid used in agriculture, and thought that the effect you gave them was just that.
Forget it, let’s not talk about this for now, Xiao Xu, is there anything you can do now?”
Xu Yun was silent for a while and said:
"Director Tian, the first thing we need to do is to stabilize our emotions. I have just contacted several physics department cadres in the dormitory building, and the doors and windows of each dormitory have been closed.
Nowadays, the students in the dormitory mainly suffer from large mood swings, but others are not affected much, so more efforts need to be made to appease them."
After speaking, he paused and continued:
"As for the follow-up suggestions, my opinion is to wait!"
"wait?"
Xu Yun nodded and said:
“After all, two tubes of gel bait are obviously excessive in terms of dosage, but from the perspective of coverage area, they are just that.
If nothing else goes wrong, it should have spread to the third generation of receptors by now, and will almost stop in two rounds.
So instead of manually intervening, it's better to just wait on the side and spray some disinfectant around to prevent cockroaches from escaping.
It’s just that if this happens, the students in the dormitory will probably have to get psychological counseling. How about each of them get a 0.2 grade point increase at the end of the semester? I’m sure there will be nothing wrong with them being active tomorrow!”
The corners of Tian Liangwei's mouth twitched a few times:
"You did it yourself and let the school make up for the grade points?"
Then he sighed:
"We'll discuss the compensation later. I'll let you decide on the solution. I'll explain it to the college and school. My dear, I thought it was a biological crisis at first."
While Xu Yun and others were talking, the Internet gradually became lively.
