Cockroaches, a general term for insects belonging to the order "Blattodea", belong to the phylum Arthropoda, class Insecta, and order Blattodea.

These creatures have survived on Earth for over 350 million years, even longer than dinosaurs.

However, the significance of cockroaches in the entire ecosystem is not significant.

Of course, it's not to say that they are useless—they have the ability to decompose organic matter into inorganic matter in nature.

In addition, they also have certain value in medicine. For example, extracts from cockroaches are found in Yunnan Baiyao's active peptide toothpaste. You might even kiss a cockroach every day.

But compared to the harm they bring, these contributions are insignificant.

Cockroaches themselves carry various pathogens, such as Shigella, Salmonella typhi, Escherichia coli, Pseudomonas aeruginosa, Proteus, as well as roundworms and hookworms. They are major disease vectors, but they themselves do not get sick.

Due to the flat body of cockroaches, they are good at living in small crevices. They can survive wherever there is water and food, so they can crawl into computers, copiers, electronic scales, water dispensers, various communication devices, and electronic instruments.

Once they bite through the wires or components, causing a short circuit, it can lead to equipment malfunctions, communication interruptions, and other unexpected accidents.

Throughout history, almost every epidemic can be traced back to the dancing wings of cockroaches.

Therefore, it is not advisable to say that cockroaches are useless, but there is no doubt that their harm outweighs their contributions.

Moreover, the decomposer attribute of cockroaches is not irreplaceable, at least in urban areas:

For example, mealworms can perfectly replace the role of cockroaches in decomposition plants, and at a lower cost.

As for cockroaches in the natural world...

That is beyond Xu Yun's scope of elimination.

As Xu Yun mentioned before, he intends to eliminate cockroaches in the "living area", such as German cockroaches, American cockroaches, and Oriental cockroaches, which are common pests in cities.

The reason why cockroaches cannot be eliminated is largely because female cockroaches only need to mate once in their lifetime to lay eggs.

After mating, the female cockroach's abdomen grows a bean-shaped structure called an ootheca, in which the eggs are laid.

A female cockroach can lay more than 10 oothecae, with each ootheca hatching more than 10 to over 50 baby cockroaches. This is one of the important reasons why cockroaches cannot be completely eradicated.

If pheromones can be synthesized with imidacloprid, it would undoubtedly be a great help in eliminating cockroaches.

"Targeted elimination of cockroaches..."

In the office, Tian Liangwei's gaze was somewhat profound. He touched his chin and asked Xu Yun:

"Instead of conducting general research, are you planning to focus on a specific species, Xiao Xu? Are you planning to enter the business field?"

Tian Liangwei's tone was not accusatory, but it carried some opinions.

In this era, it is not uncommon for researchers to start their own companies.

On the contrary, both domestically and internationally, capable experts almost always start their own companies or collaborate with institutions.

Earning money with knowledge is just like licking one's own teacher, nothing to be ashamed of.

In China, the dividing line is around 65 years old. Scholars over the age of 65 who also engage in industry are relatively rare, while experts under the age of 65 are almost always involved in some commercial ventures.

For example, Tian Liangwei has a cooperative institution with the Medical School of Jilin University, specializing in the research of NK cells. Everything is legal and compliant, and there is no need to pay billions in taxes.

However, considering Xu Yun's current age, Tian Liangwei is still not at ease with him starting a business at this time.

In his opinion, Xu Yun can first exercise in the research module of the university for a few years.

When his experience, abilities, and social connections are more clear, then he can consider starting a business.

After all, as one of the top universities in China, the treatment for research at the university is very generous. There are many examples of people in their thirties becoming millionaires or even billionaires through patent royalties. There is no talk of wasting youth.

Faced with his teacher's more tactful question, Xu Yun hesitated for a few seconds and finally said:

"I do have this plan, but definitely not now—Fourth-generation imidacloprid hasn't even been researched yet. How can I start a company without the technology?

And even if I want to start a business later, I will definitely seek help from our university. After all, I am a person from the University of Science and Technology of Life and Death."

Xu Yun's last words were a compliment, but also a part of his true thoughts.

After all, with the support of the University of Science and Technology, whether it is entrepreneurial support or personal connections, it is incomparable to starting a business from scratch. Despite being ranked behind Tsinghua University, Peking University, Shanghai Jiao Tong University, and Fudan University, in terms of backing, the University of Science and Technology, the University of Chinese Academy of Sciences, and Harbin Institute of Technology are the three giants in China.

"Alright, I respect your thoughts."

Seeing that Xu Yun's words faintly revealed some attitude, Tian Liangwei no longer insisted and redirected the topic to the present:

"Tell me, Xiao Xu, what are your plans now?"

Xu Yun took out a neatly folded piece of paper from his pocket and handed it to Tian Liangwei."Professor, I would like to apply for a pharmaceutical chemistry laboratory. Here is the list of equipment."

Tian Liangwei took the paper, reading and muttering to himself:

"Conductivity meter... Gradient liquid chromatograph... Drug dissolution apparatus... Automatic refractometer... Huh? Electric pulse remelting and recrystallization device and ICP-MS700?"

Tian Liangwei put down the list, his index finger lightly tapping on the table:

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"Xu Yun, the other equipment is fine, but these last two... they're a bit troublesome."

The electric pulse remelting and recrystallization device and ICP-MS700 are equipment from the national major scientific research instrument development project.

The latter costs around seven million, but the former is close to fifteen million.

If the applicant were a doctoral supervisor or an academician, there would be no problem. But Xu Yun is just a doctoral student applying for an independent laboratory, which is honestly a bit over the line.

"I have no choice, professor."

A bitter smile appeared on Xu Yun's face as he shook his head:

"The short-term precision of the ICP-MS700 is much higher than that of the ICP-OES and GFAAS, and when it comes to the interference of methyl matrix acid, the advantage of the ICP-MS is just too great. How can we proceed without these two pieces of equipment?"

Tian Liangwei glared at him:

"Sure, sure, the equipment is useful, but why don't you mention that the startup cost of the ICP-MS700 is four times that of the other two? Are you comparing the quality of a Bentley to a BYD without considering the price?"

He then sighed deeply, took out a separate application form from the drawer, and pushed it towards Xu Yun:

"Fill it out."

Xu Yun took the form, was about to start writing, when his gaze suddenly fell on the bottom right corner of the application form:

"Huh, professor, something's not right."

"What's wrong?"

"Why is your private seal on this form?"

Tian Liangwei took a sip of his goji berry tea and rolled his eyes at Xu Yun:

"What's so surprising about that? You're not qualified to apply for this level of equipment, so I'm giving you my quota from this year's Hundred Talents Program. Don't worry, everything is in accordance with the regulations.

And let me tell you, be careful when you use the equipment. If you break it, you'll have to pay for it yourself. Now stop dawdling and fill out the form. Once you're done, get out!"

Looking at Tian Liangwei's seemingly impatient face, Xu Yun fell silent for a moment, took a deep breath, and began to write the application.

Twenty minutes later, the application was completed.

Tian Liangwei took the form, looked it up and down, and smacked his lips:

"Hmm, it's quite professional. But while you can apply for equipment at the doctoral supervisor level, don't expect the same level of funding. Also, you'll have to assemble your own research team for the independent lab. At most, I can cover your meal expenses and a couple of team-building activities."

"I have no problem with the research team, I already have candidates."

Xu Yun replied calmly, then asked:

"Professor, if the funding can't be at the same level, how much will it be reduced?"

Tian Liangwei thought for a moment, then said:

"The funding for biological toxin research is usually distributed in stages. For a doctoral supervisor, the first stage is about two to three million, and the subsequent funding depends on your results. If you achieve Nobel Prize-level results, it's not impossible to get hundreds of millions.

As for you... I'll try to get you five hundred thousand for equipment, about three hundred thousand for materials, fifty thousand for miscellaneous expenses, and the department will give you another fifty thousand. That's a total of nine hundred thousand in funding, with four hundred thousand in cash flow. That's about it."

Xu Yun nodded slightly, a hint of excitement rising in his heart.

Nine hundred thousand in funding wasn't a large amount for Xu Yun - in his previous life, he had participated in national projects worth ninety million, even nine hundred million.

But this time, the nine hundred thousand was different. It could potentially open up a huge untapped field, helping Xu Yun and countless others fulfill a lifelong obsession...

Killing cockroaches!