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Locusts have plagued the locusts for thousands of years in Chinese history, and the methods that were finally controlled are as follows:
First: the method of direct beating.
In ancient times, the most direct way to have a locust plague was to fight directly, usually by placing a wooden board on top of a wooden stick and then slapping it directly. Because the stress area of the plank is very large, it can kill a lot of locusts at once. But the locust plague was not just a few dozen or hundreds of locusts, there were hundreds of thousands at that time, and the density of such locusts was that the sky looked gray, and the air was full of small insects.
But this method is very laborious, and the effect is also very slow, if there are only a few hundred or even thousands of locusts, it may be possible to kill people, but if it has become a locust plague, this practice is more helpless.
Second: dig a pit and bury it.
This method is a little better than the first method, which is to dig a pit in the crop field in advance, and then put some sticky things in the pit, and then everyone stands around the pit and uses the tools to drive all the locusts into the pit. Then these locusts that have been beaten down can either be killed, and those that have not been killed can also be stained at the bottom of the pit, and when there are enough locusts caught, the pit can be directly filled with soil, which is equivalent to burying these locusts alive.
Third: fire.
Although there are many locusts, they are very afraid of fire. So the people at that time would light torches at night and burn all the locusts in the house, and during the day, they would also set up a bonfire to kill all the locusts in the vicinity. This method is much more efficient than the previous two.
Fourth: pesticide insecticide.
It was not until after the founding of the People's Republic of China that agricultural experts at that time developed insecticidal pesticides. Spray insecticides directly into the field in a certain proportion to kill the locusts as much as possible. At that time, in order to get rid of locusts as soon as possible, people at that time even began to eat locusts, but the effect was not obvious, and the most effective way was to use pesticides and fire.
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After the founding of the People's Republic of China, the production of pesticides controlled locusts. In 1986, locust microspores were introduced from the United States, a microorganism capable of significantly reducing locust reproduction and aggregation. So that locusts cannot lay eggs on a large scale. So as to achieve the purpose of exterminating locusts.
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It is said that it was finally after the birth of New China that the locust plague was effectively controlled.
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During the Song Dynasty, people invented a tool to dig locusts, which could dig out the eggs of locusts from the ground and destroy them all. Later, people knew that locusts were afraid of smoke, so they would smoke locusts with straw or wormwood.
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The locust plague was controlled around 1952, the locust plague was very severe, especially in ancient times, the peasants were dependent on the sky for food, once the locust plague occurred this year, there would be no harvest, many people would starve to death, the locust plague lasted until Dr. Ma Shijun returned from overseas in 1952, when the country gave Ma Shijun a character is to eliminate the locust plague.
In ancient times, locusts mostly appeared after the drought, and the drought was when the locusts were crazy to lay eggs, and after the drought, a large amount of rain would fall, and then the eggs would hatch, and then there would be many, many locusts, so the ancients said that there would be locust disasters after the drought, but the ancients were not very advanced in science and technology, and they could only watch the crops being eaten by locusts, and the imperial court at that time had no choice.
Until after the founding of the People's Republic of China, about 1952, Dr. Ma Shijun returned from studying abroad, and the state gave him a task to control locusts, Ma Shijun took a group of people to Inner Mongolia and Shandong Province, where the locust disaster was serious.
At that time, the scientists looked through a lot of information, and there was a book that recorded that "locusts came from the sea", and then they deduced whether the locusts would fly from the other side of the sea, so a group of scientists went to the northeast, and they went to the northeast and found that there are many places in the northeast that are barren, including large swamps, these swamps are the nests of locusts, and when there is a drought, the locusts lay eggs in large numbers, and when it rains, the swamps become an excellent place for locusts to develop.
Later, they found that the bottom of these swamps was actually black soil, and the nutrient content of the black soil was very high, and it was very fertile land, so the state decided to reclaim the old nests of locusts, so that they could not only use this fertile soil, but also eliminate locusts.
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It was controlled in 1952, and there was a doctoral stage when I returned to China, and the task given by the state was to study the living habits of locusts, and finally it was completely controlled.
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According to the record in the "Law of Catching Locusts", the main method is to chase the locusts in all directions with bamboo poles to support the white cloth in a downwind manner, drive the locusts together, and concentrate on the fighting, which is also the white-knuckle war that arose during the Spring and Autumn Period and the Warring States Period! The second method is the burial method, which has a very good effect, one by one, but the difficulty of operation is also high, once the burial is shallow, the locusts can also drill out on their own. In the face of the locust plague, the ancients used fire to lure and burn locusts, but this is only a symptomatic but not a cure, although the locust plague can be controlled at that time, but a few years later the locusts will be overwhelming, this situation has continued until the birth of new China after the production of pesticides to make the locust plague effectively controlled!
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During the Qing Dynasty, there were a lot of medicines at that time, which could help solve such problems.
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In recent decades, with the progress of science, human beings have discovered many drugs when harvesting grain, which can kill pests and locusts.
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Locusts are pests and love to eat crops.
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The locust is the grasshopper. Insect pests are slowly grown in secret cellars, and in sparsely populated places and where the grains are ripe, they become the base for locust health.
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To be able to ask such a question is, of course, your Excellency's best.
Because the Sui Dynasty completed another large-scale unification in Chinese history after the Qin and Han dynasties, and also implemented the system of three provinces and six ministries, held the imperial examination system, and dug the Grand Canal, although the Sui Dynasty did not exist for a long time, the existence of the Sui Dynasty still had a great impact on Chinese history.