After testing all silkworm moths, the large troops of the Jiangnan Group began to withdraw from the three counties of Huzhou.

On the day the large army withdrew, there were thousands of people in the three counties, and the people all ran to the river to send them off. There were no flowers and banners, and there was no touching scene of crying and leaving. They just silently silenced into jars of homemade local wine, baskets of peaches and watermelons, and loads of dried vegetables and salted fish... and stuffed them into the boat where the team members were riding, and then ran away shyly, regardless of whether the boat would sink...

The people of this era were not so enlightened or even a little numb. But as long as they were humans, as long as they did not believe in one god, they would definitely be grateful and know who was good to them.

Although the final result has not yet come out, the people have accepted this love!

They kept sending the Jiangnan Group's fleet to the edge of Taihu Lake before reluctance to return.

"What a touching picture. The group's employees are connected to the people of Jiangnan..." Wang Shimei, the director of the Jiangnan Group's Propaganda Department and Wang Shizhen's cousin, was moved to tears. He said to several propaganda officers who were painting quickly under his command: "Create all these pictures quickly. I will put them on the front page of the next issue of "Jiangnan Newsletter"!"

Alas, the warm and touching scene immediately changed...

However, not all the work teams were withdrawn. After all, whether the fight against the epidemic was successful or not, we still have to wait until the summer silkworms hatched.

Zhao Hao left a working group of 30 people in each of the six counties, consisting of agricultural technicians, medical students, and Jiangnan textile representatives, to continue to track and detect the hatching and growth of summer silkworms.

Silkworm farmers in various counties also began to get busy. They wanted to "light green" the silkworm eggs to hatch summer silkworms.

The so-called "douqing" is the great wisdom of the working people in our country. Because in nature, silkworm moths have evolved a characteristic that allows silkworm eggs to lie dormant first and then start to develop after wintering. This is called "diapause" in biology.

Diapause can help silkworms avoid the severe winter, but it is not friendly to silkworm farmers, which makes their silkworms only grow once a year. Especially in the warm Jiangnan region, after spring silkworms form cocoons, they can continue to raise silkworms in the long summer and autumn seasons.

But no matter how high the temperature of the eggs laid by silkworm moths are, they remain unmoved. They have to spend a winter freezing and start to develop silently in the next year. This greatly limits the yield of raw silk in all parts of the world... Why is Japan so lacking in raw silk? Isn't the yield of silkworms they raise themselves too low?

Only Chinese silkworm farmers invented the method of "enhancing green" as early as the Song Dynasty to relieve the diapause of silkworm eggs and allow the silkworm eggs to develop more than ten days after they are laid. This is how to raise summer and autumn silkworms in addition to spring silkworms, and the yield will naturally increase dramatically.

They will intervene from the mating stage. After the male and female mating for two hours, they will manually separate the male moths and let the female moth lay eggs. Leave it for another half a day to fully fertilize it. Then put the mulberry paper covered with silkworm eggs in warm water and soak it for more than ten seconds, quickly take it out and dry it.

After about eight days, a blue spot will appear at the top of the black silkworm eggs, which is called "spotting green". The silkworm eggs with dotted green can hatch quickly. This is the so-called "stopping green".

According to Ma Yilong's speculation, this method is to use warm water to take away the heat on the surface of the silkworm eggs, making him mistakenly think that it was already cold. Then the temperature slowly rose, and he thought it was spring again. When the conditions were met, the diapause was lifted.

In order to prove his guess, he put the silkworm eggs in the ice cellar for a period of time and took them out. He found that the dot green is indeed successful, and the dot green is much higher than the use of warm water alone.

Zhao Hao also provided him with a new method. Wash it with dilute sulfuric acid solution, and the greening rate can be increased to 80% without going into the ice cellar. It can also effectively kill the silkworm sand and bacteria attached to the silkworm eggs and moth powder, and play a good disinfection effect.

In fact, it will be better to use dilute hydrochloric acid solution, but at present, Institute 04 can only obtain hydrochloric acid by mixing concentrated sulfuric acid with table salt and heating it. However, the cost of making it on a large scale is obviously too high.

First, there is not so much concentrated sulfuric acid. Although a thousand years ago, alchemists had mastered the method of calcining pyrite or sulfur to produce sulfur.

But the difficulty of industrial production is completely incomparable. Is it okay? Zhang Jian and Qu Rukui spent many brain cells, failed many times, and spent how much money to build three tower-like reaction devices, which can barely produce 100 kilograms of concentrated sulfuric acid per day.

The reason why it is said to be forced is that the reaction device fails from time to time and has to be shut down for several days each time.

The use of sulfuric acid is too wide, and the average daily output of 200 kilograms is not enough to be stuck between teeth. However, Zhao Hao asked Zhang Jian and others not to worry, and to provide internal use of the research center. The current preparation device will be operated for one year, and after improvement and improvement, then consider expanding production capacity.

Therefore, the use of sulfuric acid to produce hydrochloric acid can only be completed in the laboratory, and industrial production is currently impossible.

In fact, in industrial production, let alone sulfuric acid, even salt cannot be used.

Jiangnan Group has not been involved in the salt industry in China. After all, this thing is too taboo. Otherwise, Pudong, which has a vast beach and a tidal flat, would be a perfect natural salt field. Unfortunately, how many pairs of eyes are staring at Jiangnan Group? How dare Mr. Zhao do anything randomly?

So I can only count on lawless overseas, but the problem is that the Danluo Island, which Mr. Zhao currently controls, is not suitable for a salt field... Although it is surrounded by the sea and has sufficient seawater resources, it does not have a flat beach to dry salt.

The same is true for Japan, where the rugged coastline cannot establish a salt field at all. And the temperature is too low and it evaporates too slowly when salt is dried.

Although Danluo Island is known as the subtropical marine climate, it is affected by the small glaciers and the temperature cannot rise. Therefore, after Zhao Hao asked someone to inspect, he gave up the plan to set up a salt field in Danluo or Japan's offshore islands.

However, as an important strategic resource and chemical raw material, Zhao Hao will not give up. He focused on the Budai Salt Field in the southwest of Taiwan, Taiwan, and the Changlu Salt Field in Lianghuai and the Yinggehai Salt Field in Hainan Island, and was also known as one of the three major salt fields in my country!

Although Yinggehai Salt Field has not been established yet, you may encounter thieves when you go there... The heavy fog is because Hainan Island is already a familiar place for the imperial court, and it is inconvenient to have Qiongzhou Prefecture stare at it. Taiwan Island is currently a place where pirates and natives occupy it, so the difficulty of occupying is naturally much lower.

Moreover, Taiwan is also the base for future advancement to Luzon. After Mr. Zhao completes preparations, he will rush his troops south to recover Taiwan from the pirates for the Ming Dynasty...

It seems to be talking about silkworm babies, how did it lead to the recovery of Taiwan?

It's a long way to go, and get back to the point.

In short, with the dual blessing of Mr. Zhao and Ma Yilong, the green spot rate of silkworm seeds in six counties in Jiahu reached more than 80%.

In mid-May, ant silkworms hatched one after another. Silkworm farmers quickly cut the tenderest mulberry leaves into small squares and sprinkled them on the dustpan. Then they held the silkworm planting paper in one hand and the silkworm chopsticks in the other hand, evenly patted the silkworm planting paper back to make the silkworm fall on the basket, and then scraped the ant silkworm with goose feathers, sorted it into a circle, and sent it to the silkworm room where the disinfection was completed and the customers were re-received.

Then he took good care of himself day and night.

The silkworm farmers have been soaked in spring. Now they can only count on the summer and autumn silkworms. They are more careful than taking care of babies. And they follow the instructions of the agricultural technicians and do whatever they want, for fear that all their efforts will be wasted due to their own reasons...

The inspectors of the working group were also very nervous. They also conducted random inspections in villages and villages without any reports, and rushed over to inspect immediately, for fear that the diseased silkworm would not be found in time and the epidemic would spread again.

Fortunately, the previous disinfection work was completed very solidly. After random inspection, it was found that the total number of silkworms with white larvae and rust was less than one ten thousand, and they gathered in more than ten silkworm rooms. It should be because there were moths that had leaked the net during the detection or whether there were any bacteria that were disinfected.

After the onset silkworm room was completely disinfected, no new cases were found during the detection of second-aged silkworms.

There were also zero new additions in the third-year silkworms, and the small silkworm period was successfully passed. This made everyone feel relieved.

First, the number of new ones has been added for so long, which basically means that the bacteria have disappeared. In fact, in this era, silkworm farming was based on families and was not produced on a large scale. As long as the silkworm farmers pay attention to it, the bacteria will not spread so easily...

Second, Ping safely survived the silkworm stage. Even if the epidemic broke out later, it would always be able to keep the harvest of 70% to 80%...

The result is that the fourth-year-old silkworms also have zero new additions.

There are still zero new silkworms in their fifth-year old.

After the silkworm formed cocoons, there were still zero new additions!

The silkworm disease that ravaged the six counties in spring actually disappeared completely like this, as if it had never happened before...

And it may be because of passive breeding before, and then scientifically urging, sanitation and scientific feeding, the other diseases disappeared, and the cocoons that were produced in the end were large and white, which was even better than the harvest of spring silkworms!

The good news came to Jiangnan Building. Mr. Zhao jumped up from the boss's chair, hugged Jiang Xueying who came to announce the good news, and kissed her heavily in front of several directors.

Wang Mengxiang and others quickly turned around in embarrassment, why don’t you tell me the occasion? Is it shameful? It’s so good to be young...

Jiang Xueying did not have the majesty of the president, and she ran away with a moan.

The directors wanted to laugh but didn't dare to laugh, and their faces were red.

Zhao Hao smiled at the directors shamelessly: "Okay, there are zero new additions in a month, I think we can announce a complete victory!"

"Haha, it's so exciting... Oh no, I'm talking about this Spring Thunder Operation." Wang Shimao coughed awkwardly and quickly changed his words: "Don't look at the noise, it's like fighting a war."

"I almost scared me to death." Wang Mengxiang also smiled and said, "I'm talking about the cost, there are 300,000 taels."

"How many? Not many." Mr. Zhao was thick-skinned and didn't care about their jokes. He said to himself: "Preventing the spread of the epidemic has enhanced Jiangnan's cohesion and increased the people's confidence in the group. He also established a system of epidemic prevention and control, which is worth ten thousand yuan!"

"What the young master said," the directors praised: "No matter how you explain it before, the people didn't understand what science is, but now they all know that science is good."

"But we still can't relax completely." Zhao Hao continued to say with great enthusiasm: "These six counties are free of bacteria, but other counties still have them, and there is still a possibility of an outbreak. Therefore, the county development companies and Jiangnan Textile should do a good job in normalized monitoring of silkworm disease. The more early they are discovered and dealt with in advance, the smaller the losses will be."

"In addition to silkworm disease, infectious diseases of humans and animals are also the same. I think it's better to set up a special epidemic prevention committee to be responsible..."
Chapter completed!