Tang Bohu Marries Qiuxiang

Chapter 286
Tang Bohu thought, Tian San really came with a doctor, "My lord, this is a famous doctor nearby."

"You're the one who's sick!" Tang Bohu burst out angrily, and kicked Tian San's ass.

"Young people should be treated when they are sick. It's not good to avoid medical treatment because of illness." The old doctor muttered.

Now Tian San was unhappy, and kicked Langzhong's ass, "Dare you say that my lord is sick? It's against you!"

"Didn't you ask me to come?" The old doctor said aggrievedly.

"Did I tell you to come to see the doctor?" Tian San punched and kicked the old doctor, "Does our lord look sick? Remember, sir, I asked you to see the scenery. Who asked you to come?" sick."

"It's simply unreasonable." The old doctor flicked his sleeves and left angrily.

"My lord, the current doctor is really outrageous!" Tian San said while looking at him.

Tian San performed very well, but Tang Bohu's mood was as bright as a mirror, and he kicked his ass, "I think you need to find a doctor!"

"I'm guilty of a humble job." Tian San lowered his head in embarrassment.

Tang Bohu didn't bother to care about it, his toothache looked at the locusts in the rice field.

"My lord, why don't we set the whole fire on fire." Tian San said regretfully, "If these locusts fly up, it will not only be an issue in Chizhou area, it may affect half of Guanzhong."

"Think of a way, think of a way, don't burn the fields unless it is absolutely necessary." Tang Bohu looked very tired, he hadn't slept all day and all night, seeing the situation in the fields right now, he didn't have the mood to sleep at all.

Pesticides!Tang Bohu immediately thought of this. Tang Bohu, who traveled through later generations, knew that in the West, since ancient Greece to Rome, people have used insecticides to control locusts.

"Poison all these bugs to death!" Tang Bohu said calmly in a low voice.

Tian San couldn't figure it out, "My lord, are you going to pour arsenic into the fields?"

Tang Bohu: "..."

Speaking of pesticides, what should pesticides do?Tang Bohu grabbed a locust that could not fly and thought about it. The earliest insecticide used was something called pyrethrum, but this thing does not exist in the Central Plains now, and it still grows in the West.

Is there any substitute? The elm tree is one of them. Memories are constantly flashing in my mind, but I just can’t remember anything. I regret that I would have read more books. !"

"Tian San!" Tang Bohu said loudly, "Go and find out, what can kill locusts!"

"Yes……"

Before Tian San could say anything, the old farmer weeding aside said, "I've never heard of something that kills locusts. Arsenic is too expensive for poor farmers to afford."

"My lord, I think you, Mian Shan, are here to control this pest plague," said the old farmer.

Tang Bohu nodded in disappointment, he had indeed invited himself to get rid of the bugs, but now he couldn't think of any way.

"My lord, I've never seen the thing that can kill locusts, old man, but there is one thing that locusts won't touch." The old farmer sighed and said, "That was something about my grandfather's generation. Grandpa was still very young, and there was a plague of locusts. The locusts covered the sky and covered the sky, covering a large area! Even the bark of the trees was gone. My grandfather had no food at that time and was looking for something to eat in the woods. He saw the locusts walking by. There's something in the place that's still there."

"That thing is called bitter bark vine. The locusts will not let go of the bark, but the bitter bark vine will not touch the insects!"

After the old man finished speaking, Tang Bohu thought about it. He had never heard of bitter bark vine before. Tian San stepped forward and said, "My lord, if you don't want to be an official, let's go buy arsenic."

"Maybe it's really useful." Tang Bohu thought, if this bitter bark vine can replace pyrethrum, then maybe this locust crisis can survive.

The old man cut down a section of vine from the forest and said, "My lord, this is bitter bark vine."

After receiving the bitter bark vine, Tang Bohu put it on his nose and smelled it carefully. It was a very common smell of grass and trees, without any characteristics, but it must be reasonable for the locusts not to touch this thing. "A dead horse is a living horse." Medical treatment."

Tian San stood aside, puzzled.

Tang Bohu said: "Tian San, go and catch dozens of locusts for experiments."

"Experiment?" Tian San didn't understand.

"Just grab it." Tang Bohu observed the bitter bark vine, and remembered that there was something called elm bark in the insecticide. Tang Bohu used a dead horse as a live horse doctor, and began to do experiments. If he couldn't extract the compound, he could only start with organic matter. , science is a step-by-step process from hypothesis to experiment to demonstration.

There are a lot of materials on the table, and Tang Bohu also has the same ratio to synthesize. He was thinking about when there was a big locust plague in the Ming Dynasty, but there will be a global cold wave at the end of the Ming Dynasty. I don’t remember. There is a big locust plague, maybe the scope of the locust plague is not large.

Tian San caught dozens of locusts, and then stood quietly watching Tang Bohu's hands and feet kept busy, and he didn't know what he was doing. He squeezed out a little branch juice and ground unknown plants into powder.

Stirring the first batch of potions, Tang Bohu used five locusts to make batches of experiments.

As the potion was poured in, the little locusts just jumped up and down twice and didn't respond!Frowning, Tang Bohu adjusted the ratio again, increasing the amount of bitter bark vine and reducing the ratio of other materials.

"My lord, my lord!" Tian San observed the locust and said, "It works."

Looking up, Tang Bohu saw that three locusts had fallen into the bowl, and the other two were still alive and kicking, which meant that the potion was effective, but the proportion was wrong. Tang Bohu was confident this time.

He brought five locusts again, and Tang Bohu poured them in the same amount as before, and began to observe the changes of the locusts in the two bowls before and after.

Three of the locusts in the first test fell on the liquid medicine, but they were not dead yet, and the locusts in the second test did not respond to the effect of the medicine.

About half an hour later, the locusts in the second test also showed a reaction, and gradually began to twitch, then spit out a mouthful of green juice, poured it into the bowl and did not move again, Tian San picked up the locust that had just fallen and waited for his eyes and said: "My lord , dead, really dead!"

"Tian San!" Tang Bohu said to him: "Hurry up and clear a field, I want to do an experiment immediately to see the effect."

"Yes, my lord!" Tian San nodded excitedly.

Tang Bohu put a series of liquids into a large gourd in a large scale, and then dissolved and diluted these potions in water to ensure the medicinal properties of the potions, and the ratio must be well grasped.

The spraying technology of later generations can't be done, so it can only be sprayed by manpower.

(End of this chapter)