little fool's child bride

Common locusts are mainly divided into soil locusts and migratory locusts. Most of the locust plagues are migratory locusts, because they have wings and are more mobile; and they are oligophagous pests, which only feed on grasses and sedges. Youcheng grows rice, a gramineous crop.This year, Youcheng's harvest has decreased by nearly [-]%, but the luck of the misfortune is that it was already autumn when the outbreak broke out this time, and if it broke out in summer, there would be no way for people to survive.

The locust plague is very terrible. During the 600 years from the Spring and Autumn Period and the Warring States Period to the end of the Qing Dynasty, there were 530 and [-] locust plagues in all Chinese dynasties, which is equal to one locust plague every five years on average.In the "agriculture-oriented" and backward technology, such overwhelming destruction is a heart-pounding disaster for the people of the country.However, the Han people have always been a very strong and wise nation, so they invented many methods to resist locust plagues:

The first is the manual swat method.This is the oldest method of exterminating locusts in ancient Chinese history.According to the records in the "Essentials of Catching Locusts", this method is mainly for the villagers to use bamboo poles to prop up an eight-foot-long white cloth, and chase the locusts from three sides in the direction of the wind. .It belongs to the "hand-to-hand combat" that farmers have fought against locust plagues since the Spring and Autumn Period and the Warring States Period.Although this method consumes physical strength, the tools are simple and the method is simple, and it is suitable for a large number of villagers to fight collectively.Therefore, in the past 2000 years, it has been very popular in rural China, and this time the locust plague in Youcheng was the first to use this method.

The second is the trench burial method.Although the manual batting method is simple, it consumes too much manpower and energy.So during the Han Dynasty, the exhausted people of the country also had an idea: why should we fight hand-to-hand with locusts?Wouldn't it be enough to dig a hole for the locusts?So the "trench burial method" came into being.

Introduced in the Eastern Han Dynasty "Lunheng" and other classics, this method first digs a large number of large pits two feet deep and wide in the area where the locusts will pass, and then introduces the locusts into the pits by swats and other methods after the locusts arrive. Then focus on landfilling.This method has an excellent effect of "killing the enemy", and usually a large area is buried.The operation is also difficult: once the soil is buried too shallow, locusts can also drill out. The "Book of Jin" records that locust plagues occurred in the Hedong area at that time. People used the "trench burial method" to bury and kill the locusts. The locusts buried in the clinker flew out in a blink of an eye, and ate up the crops.

Therefore, a more ruthless method became popular in the Tang Dynasty of our country, that is, the bonfire booby-killing method.

In fact, the desire to burn locusts was very strong during the Spring and Autumn Period and the Warring States Period. In the "Book of Songs", there is a cry of "Bringing the thieves to pay for the flames".In the Tang Dynasty, the operation of "burning locusts on fire" finally matured.

According to the "Atlas of Locust Catching" and "Comprehensive Locust Control Law", if you want to "burn locusts", you must light a bonfire when it is dark, and besides the bonfire, you must set up lights in areas where locusts are densely populated. Use closely coordinated lights to attract a large number of locusts.Then the locusts burned by the fire will lose their ability to fly.A large number of people took the opportunity to hunt and kill.It is also possible to bury the killed locusts in the trenches.

During the Kaiyuan period of the Tang Dynasty, facing the locust plague that swept across the Central Plains, the prime minister of the Tang Dynasty, Yao Chong, decisively used the "campfire killing method" and successfully extinguished the disaster in a short time.

In the Song Dynasty, when agricultural technology was more developed, large-scale locust extermination and burning were also adopted: burning the breeding grounds of locusts would not only eliminate hidden dangers of disasters, but also open up wasteland for farming in the burning areas, which can be said to serve multiple purposes.

The last one is the method of removing eggs by insects.It was also in the Song Dynasty when agricultural technology was booming, and the awareness of disaster prevention was deeply rooted in the hearts of the people-rather than killing locusts in a catastrophe, it is better to cut the grass and roots in advance.Taking advantage of the opportunity of winter, remove the breeding grounds of locust eggs.Therefore, there is "according to the method of removing eggs by insects".

Locust plagues mostly occur after summer and before winter. One is caused by nymphs, and the other is caused by adults ingesting a large amount of food in order to lay eggs.This is because the locust is an incomplete metamorphosis insect, which goes through three stages, namely egg, nymph and adult.

The female locust will insert the hard oviposition tube of the tail into the ground to lay eggs wrapped in foam. These eggs will hatch into nymphs in summer, which are wingless but good at jumping locust larvae.Although these nymphs are also harmful to crops, because of their limited range of action, they are easy to manage and difficult to become disasters.But by the fall, when these nymphs have grown into winged adults, it can be devastating to a region.

They eat wherever they fly, and the crops in the field often end up with nothing to grow, because these insects that are good at digging the soil sometimes will not let go of the roots.Drought is already sad, but if you catch up with the locust plague, you will be really desperate. In the end, you will often starve and die everywhere, with your bones exposed in the wild.But fortunately, Youcheng has not reached this point yet, adults cannot survive the winter, so as long as the eggs they laid before winter are cleaned up, the possibility of such a tragic disaster can be greatly reduced.

According to the records of "Song History", farmers in the Song Dynasty often looked for locust breeding grounds in winter. The "Comprehensive Law of Locust Control" also summarizes the experience of "removing eggs according to insects" since the Song Dynasty: wherever locust eggs breed, there are often countless small holes like beehives on the ground, which must be dug decisively to eradicate them.During the Ming and Qing Dynasties, people even developed primitive "pesticides", such as "Zipia thick juice" and "Mature vinegar mixture", which are specially used to kill insect eggs.

This is the method that Han Yi was talking about, but this method of finding insect eggs is simply exhausting to the extent that Shen Kuo and other famous officials in the Northern Song Dynasty complained.Sometimes the locust plague still came in the next year after exhausting the work of planing insect eggs, and there was no effect at all.Therefore, Han Yi was not optimistic about this method of disaster prevention, but began to think about how to adjust his business next year.

Xiao Xiao has also heard of such serious and frequent disasters in Chinese history. After all, his best friend studied environmental protection.For locusts, an insect that reproduces quickly and is very harmful, the above methods are just to alleviate the disaster and minimize food loss. In fact, they do not cure the symptoms at all.In the world Xiao Xiao lived in, until the modern society, countries all over the world used various modern technological means to barely control the locust plague.

Some people once thought that foodies alone could eat locusts without causing disasters, but in fact it is only modern, because science makes it basically impossible for locust plagues to form, and what can be formed is nothing in front of the 13 billion Chinese.The locust plague in Weifang, Shandong Province was eaten up by foodies from all corners of the country who came to "fly" before they flew out of the province. However, in the ancient times when the transportation was inconvenient and the population of Baiyu Kingdom was only 2000 million, it was impossible to rely on foodies alone. Solve the problem.

Although Xiao Xiao really wants to help, but apart from knowing that locusts can be eaten, she is really powerless.So he could only gnaw his nails in distress, and while recalling what good solution his good friend had said, he sighed quietly: "I would have learned environmental protection if I knew it earlier, and maybe I could leave green water and green mountains for future generations."

In fact, Xiao Xiao has been worrying about whether she should help Baiyu develop technology, because the production of technology is at the expense of the environment, and the earlier it is developed, the more serious the damage to the environment will be.When China was developing, it had lessons learned from countries such as the United Kingdom and the United States, so it was able to control while polluting, so it was able to barely maintain the clear water and blue sky; Hundreds of thousands of years slowly governed.

The only thing that can make everyone realize the importance of protecting the environment from the very beginning is that Xiao Xiao has enough influence, so that the concept of protecting the environment can be deeply rooted in the hearts of the people.But he is only a doctor of Guozijian, and now he has lost his memory, how can he do such a thing?So he hesitated again, just like every thousands of travelers who are afraid of changing history but become sinners through the ages.

"What environmental protection?" Han Yi looked at him suspiciously, then nodded as if thinking of something, "Locusts like dry and warm places, and it is true that locust plagues can be cured by changing the environment. But it is too late now."

What Han Yi was talking about was actually the method of cultivating wasteland and eliminating locusts.In the history of China, during the Ming Dynasty, people became more aware of a fact: farming is actually better than finding insect eggs to eliminate hidden dangers, so they developed such a method to resist locust plagues.

Strictly speaking, the method of reclaiming wasteland and eliminating locusts actually started in the Yuan Dynasty. According to the "Nongshu", farmers in the Yuan Dynasty often reclaimed wasteland and planted taro and mulberry crops to resist locust plagues.When it developed into the Ming Dynasty, there were more systematic operations: the places where locusts breed were all "dry lake" areas, which must be transformed into farmland. During the reclamation process, the eggs were killed by various means. At the same time, plants such as mung beans and peas that locusts do not eat are planted, which are used as food preparations for locust disasters.

In Xu Guangqi's "Nongzheng Quanshu", this "reclamation of wasteland and locust elimination method" is not only fully recorded, but also spread to European and American countries as the "Nongzheng Quanshu" has become famous all over the world.It also has an important influence on the research on pest control in the West in modern times.

But now it's time to harvest crops, and people who are busy in farming must not want to cultivate wasteland, and they don't even make money.And if you wait until winter, the cold weather and hard land will definitely make it more difficult to cultivate wasteland.Xiao Xiao thought about it carefully, and then asked, "Can the children be involved?"

Han Yi raised his eyebrows: "What's the explanation?"

"Adults are busy, but children are very idle, especially those who are young," Xiao Xiao frowned and bit her nails, "Children are very active, they must be able to find many places with locust eggs, and then we will Set it on fire and reclaim it next spring. The children need less pay, and we are afraid that a copper coin can be exchanged for a site with locust eggs."