Just after the New Year in 1872, a boat landed on the pier on the east coast of Panama. Some people in light gray work clothes got off the boat, and the pattern of a yellow and black umbrella was embroidered on the chests of their work clothes. Locals all recognize that this is the symbol of the Panama Canal Company's immunization water supply department. When the Japanese workers had a yellow fever outbreak, these people were responsible for various things in the worker's camp. Now people with such signs returned to Panama again. It seems that the development of the canal is really about to start again.

After the boat landed, more ships arrived continuously. More people and supplies were transported to the shore. Then the workers began to arrive one after another. Unlike last time, these workers this time were mainly white.

Scourge originally wanted to use Japanese workers or simply use Chinese workers. Because both Japanese workers and Chinese workers are cheaper than white people, even the cheapest Irish whites. And with DDT this time, there should be no large-scale casualties. So even if you use Chinese workers, Scourge feels that there will be no big problems.

However, the development of things was a bit beyond Scourge's expectations. In Japan, after the Reformation Government came to power, it promoted the death of a large number of Japanese workers in the Panama Canal as important evidence of the shogunate's treason. As a result, when Scourge's people came to the door again, the Japanese government's offer was much higher. As for China, it was not difficult to recruit some workers. It was even operational, but I don't know what to do. Some political changes suddenly occurred in the Qing Dynasty. A group of so-called "clean streams" used this matter to attack the Westernization faction's treason. Then, well, at least for a short time, Chinese workers could not count on them. Of course, only the Irish and black people were left.

Unlike last time, it was not the workers who entered the forest first, but employees of the immunization water supply department and a small number of lumberjacks who opened the road with an axe and a machete. What these people had to do was to eliminate dangerous mosquitoes in the Panama rainforest before the workers started working.

The climate in the rainforest area near the equator is very regular. Basically, there will be heavy rain every afternoon. In addition, the forest is particularly dense, and various trees and vines cover the sun, so the forest is very humid and stuffy. This environment brings very favorable conditions for the growth of various insects, especially mosquitoes. Here, the heat necessary for mosquitoes to reproduce and water are everywhere in a year and twelve months. So in the rainforest, there will never be fewer mosquitoes.

"Bart, you nigger, don't pull the protective suit away if you don't want to die!" Squad leader Coot yelled at the lumberjack Bart. The mosquito-killing team wore special protective suits that wrapped around the body. This protective suit made of thick canvas and was brushed with a thin layer of vulcanized rubber on the outside can block the attack of any mosquitoes or other insects, and in the specially strengthened positions - the calves, feet, head, hands, and even the fangs of the venomous snake. Of course, this protective suit is not specifically designed for this project. Although it is publicized to the outside world, in fact, it is a chemical protective suit designed for possible future chemical warfare.

Although this kind of clothing can provide very good protection, it is a mess when it comes to comfort. In the already hot tropical rainforest, the temperature in the airtight protective clothing can easily exceed forty degrees. And lumberjacks who are engaged in relatively heavy physical labor are naturally even more painful. Whenever it is possible to unzip the protective clothing for breathing, it becomes a habit for lumberjacks.

"Captain, I'm so hot, I'll faint!" Bart complained.

"Okay okay, I'm not responsible if you die." Kurt said, "You are not a child anymore, you can take care of yourself. Well, there is a big puddle here, Simlin, come and deal with it."

"Okay captain!" Simlin answered loudly, carrying a sealed iron bucket and walked over. There was also a black and yellow umbrella painted on it.

Simlin walked to the puddle. The puddle was quite large and looked like a small pond, but the water was not deep, and the deepest part could only cover the knees. There were some dead branches and leaves floating on the water. With the little sunlight leaking from the top of the tree, you could see that the water was full of small insects moving bounced and bounced. Simlin recognized that this was the mosquito larvae mosquito. He skillfully unscrewed a small lid on the iron bucket and poured some milky white liquid into the water.

Originally, using ddt should first be used to transform it with a suitable amount of water and judge the amount of water based on the amount of water. However, if you really want to do this, you will have a lot of trouble and it will cost a lot of extra effort. If you wear protective clothing that can kill people with such heat, it will be even hotter. Moreover, their requirement is to ensure that all the mosquitoes are killed. As for how much ddt is used, it is just like the owner does not care about the life and death of these mosquitoes, and the above does not care about how much ddt is used. Anyway, this thing is cheap. Compared with the dosage of ddt, the above pays more attention to the speed of doing these things.

Therefore, the executors below will naturally adopt the most comfortable and efficient method - when you see the puddle, you will directly reach the raw liquid, anyway, you will melt it yourself. It is estimated that it is easy to pour it, and of course it is better to make more to ensure the effect. Therefore, the amount of use will generally exceed the standard by three or five times. Anyway, the above doesn't care. Whether it is the person above or the above person.

The milky white stock liquid slowly melted in the water. In order to ensure the effect, Simlin lifted the bucket and took a few steps to the other side and poured some down. Then he was satisfied that the mosquito larvae that was still bounced just now was no longer moving. There must be many mosquito larvae jumping around in the center of the puddle, but they won't be long. At most half an hour, all the mosquito larvae in the puddle will die, and for a long time, no mosquito larvae or other insects will grow here.

There were two black men in the team who were responsible for carrying medicine barrels to spray the leaves and other places along the way. It was said that there were tens of thousands of tons of ddts prepared for this forest. Mr. Scrooge even threatened that the Panama Rainforest would not have the mosquitoes that dared to fight against humans in the next few decades. So everyone had to speed up the time to use these ddts.

They walked forward a while. They processed several large puddles and a real large pond. It was a depression in the rainforest, where the rainwater accumulated so deep that the trees could not grow there. The sun shone without any blockage, so that the team members who had become accustomed to the dim light in the rainforest could not open their eyes. Regardless of the slightest, Simlin simply put all the remaining liquid in.

"I don't know if it's enough." Kut looked at it and said, "The water here is deep enough. Well, just pour all the liquid and potion in it. Then we go back."

...

Every day, more than a dozen mosquito-killing teams will kill mosquitoes in front and clear out a mosquito-free safe area several kilometers wide and one kilometer deep. A large number of lumberjacks without protective clothing followed behind to cut down the rainforest along the line, and then construction workers followed behind to dig the river channel. This effect is very good. Not to mention mosquitoes, the lumberjacks following behind have never seen any insects still alive. Not only the threat of mosquitoes was lifted, but the threats brought by poisonous spiders, wasps, water lees, drought lees, and various snakes were also solved. ddt is very good for these cold-blooded animals.

Damn, it has very efficient killing efficiency, and even the largest snake, the anaconda cannot escape. Lumberjacks have found poisoned anacondas more than once in the water or under a big tree. The largest one weighs 400 pounds. In this forest, it was originally a well-deserved king. Apart from time, almost no creature can threaten a big snake like it. Even the crocodile staying in the lake has to retreat to it. However, when it swam through the water full of ddts, the ddt, which is extremely toxic to cold-blooded animals, took its life in a very short time.

The only crocodile that dares to compete with the anaconda is not much better. Except for some people living in very large lakes, those crocodiles that have found a large pond to dominate the other side have also become victims of DDT. Of course, the situation of warm-blooded animals is much better, such as jaguars, at least not directly poisoned to death. However, many of them were shot and killed by the Blackwater members in charge of security. So when the lumberjacks began to cut down these forests that had grown for many years, these forests were so silent. Except for the sound of one big tree after another being cut down and the sound of the huge canopy hitting the ground, there was no other sound, no insects, no birds, no roars of jaguars, and of course there was no joke.

The effect of large-scale use of ddt on rainforest is very obvious. The yellow fever, which once made people talk about, has disappeared. It has been more than two months since the construction workers entered the rainforest on a large scale. At this time, most of the unlucky guys from Japan have only left the value of contributing to the advancement of medicine, but now, there has not been a case of even yellow fever or malaria or other insect-borne diseases, whether in Irish or black people.

"We can basically cheer. We have defeated the rainforest and defeated the disease that has been entrenched there for countless years. From now on, there will be no forbidden zones closed to mankind on the earth. This is a victory for mankind and a victory for science. This is a small step for science, but a big step for mankind to defeat nature!" In the subsequent interview program, Scourge said proudly.r1058
Chapter completed!