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A locust plague is a cataclysm caused by locusts. In the event of a locust plague, a large number of locusts will devour the fields, so that the agricultural products will be completely destroyed, and will cause severe economic losses and famine due to food shortages.
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It will lead to a decline in the overall economic efficiency, which will lead to a bad harvest in some places, which is likely to affect the lives of many ordinary families, and is likely to have a certain impact on the rural economy, which will lead to a lack of food.
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The locust plague will destroy a lot of crops and then affect the harvest of crops, which is very bad for farmers and very bad for other people.
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At present, the most effective way to control locust plagues is to use aircraft to spray pesticides, which is extremely efficient.
1. Spray pesticides to kill locusts.
Compared with other methods, the most effective way to kill locusts is to use airplanes to spray pesticides. Because this method has extremely high insecticidal efficiency, the scope of extermination is relatively wide, and it can cover a large area of locust-infested areas, and the pesticide is a pesticide specially targeted at locusts that has been studied by scientists, so the insecticidal efficiency will be relatively high. However, the disadvantages of this approach are also very prominent, that is, the cost is relatively high, and not everyone can adopt this method, which can only be adopted by the state to organize.
Second, the use of natural enemies to prevent and control.
Compared with the use of chemical ** to control locusts, there is also a way to use natural enemies to control locusts, which is more healthy and efficient, and will not cause too much damage to the ecological environment. For example, when there was a locust plague in Inner Mongolia, China sent a large number of ducks to Inner Mongolia to exterminate locusts. The advantages of this approach are obvious: there is no need to buy a lot of pesticides, there is no need to worry about the damage caused by chemicals to the land, and the speed of locust extermination is quite fast.
The disadvantage is also more prominent, that is, ducks do not necessarily only eat locusts, and may also damage some surrounding crops.
3. Environmental protection.
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There are many ways to control locusts, each method should take into account the biogeographic environment, there is no most effective method, only through the environment and the type of insect control to choose the management method, although our country has been suffering from locust plague this major natural disaster since ancient times, but our country has 68 kinds of natural enemies of locusts, such as chickens and ducks, birds and birds and other creatures are the natural enemies of locusts, in modern times I control locusts is simpler, through pesticide spraying and scientific effective control, can greatly reduce the occurrence of locust plague.
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You can choose to raise more ducks and chickens in the field to destroy locusts, you can choose to use insecticidal agents to spray to exterminate, locusts can choose to increase the amount of fertilizer, and you can choose to catch them on a large scale to make food.
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Ancient people would take several approaches when dealing with locust plagues:
1) Extinguishing locust fires – In traditional farming societies, locust fires are generally used as a way to protect plants. Extinguishing locusts refers to the use of fire to eliminate locust breeding colonies in places where locusts breed in large numbers before insects appear in large numbers;
2) Planting drought-tolerant crops – Ancient people would also choose to grow drought-tolerant crops to reduce the impact of locust plagues;
3) Use of anthelmintic drugs - in addition to the above two preventive measures, ancient people would also take the use of drugs to repel insects, such as using anthelmintic drugs such as Tsubaki bark and Cordyceps;
4) Improving the soil – Ancient people would also improve the condition of the soil as much as possible, strengthen the soil system, make the soil resistant to drought, and reduce the impact of locust plagues;
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In ancient times, there were many ways for people to deal with locust plagues, and generally after locust plagues, certain agents would be used to exterminate insects, but at that time, people's ability to conquer nature was really poor.
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In ancient times, it was common to create a very toxic drug to destroy locusts, but the drug could also damage crops.
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In order to deal with the locust plague, ancient people would catch locusts and eat them, and some would find ways to catch locusts and then burn them.
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Summary. Dear dear, it's a pleasure to answer your <>
There is a correlation between locust plagues, floods and droughts. On the one hand, the increase in the frequency and intensity of floods and droughts may trigger locust plagues. On the other hand, locust plagues are affected by climate and the environment, which can also exacerbate the occurrence of floods and droughts. However, on the whole, the impact of drought on locust plagues is more pronounced.
Because the drought has led to drought and low precipitation, the crop yield has been greatly reduced, resulting in less food** for the locust plague, which has exacerbated the occurrence of locust plagues. In addition, drought can lead to desertification, which may further contribute to locust infestations. Both floods and droughts can have a negative impact on locust infestations.
Floods can lead to massive crop destruction, which in turn reduces locust losses; Drought, on the other hand, can trigger locust plagues, making crops more vulnerable. Therefore, it is necessary to strengthen the prevention and control of floods and droughts to prevent the occurrence of locust plagues at the source.
It is pointed out that there is a stronger correlation between locust plague, flood and drought, and the impact of this disaster on the occurrence of locust plague is analyzed.
Dear dear, it's a pleasure to answer your <>
There is a correlation between locust plagues, floods and droughts. On the one hand, the increase in the frequency and intensity of floods and droughts may lead to locust plagues. On the other hand, locust plagues are affected by climate and the environment, which can also exacerbate the occurrence of floods and droughts. However, on the whole, the impact of drought on locust plagues is more pronounced.
Because the drought has led to drought and low precipitation, the crop yield has been greatly reduced, resulting in less food** for the locust plague, which has exacerbated the occurrence of locust plagues. In addition, drought can lead to desertification, which may further contribute to locust infestations. Floods and droughts can have a negative impact on locust infestations.
Floods can lead to massive crop destruction, which in turn reduces locust losses; Drought, on the other hand, can trigger locust infestations, making crops more vulnerable. Therefore, it is necessary to strengthen the prevention and control of floods and droughts to prevent the occurrence of locust plagues at the source.
Kiss <>
Locust plague refers to a disaster in which locusts cause serious damage to crops or forests and other vegetation caused by locusts breeding, gathering, and flying. Locust plagues are an important part of the natural environment and ecosystem, and due to their prevalence, scale and destruction, they pose a major threat to agricultural production and human survival. The causes of locust plagues are mainly related to factors such as climate, environment, ecology, reproductive mechanism and control measures.
In order to prevent and control the occurrence of this locust plague, it is necessary to take comprehensive measures, including close monitoring, early warning, control technology and international cooperation. <>
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1. Causes of drought: From an environmental point of view, one of the main causes of locust plagues is caused by drought. Because in an arid environment, locusts are very beneficial for growth, reproduction and survival.
When locusts lay eggs, they generally lay their eggs in the soil, and the solid soil with a water content of about 15% is the most suitable environment for locusts to lay eggs. In times of drought, when the water level drops, the locusts grow quickly and multiply, and the water content decreases as a result. In addition, the amount of vegetation on the ground is very small, which leads to a large increase in the number of eggs laid by locusts, which in turn leads to locust infestations.
2. Living habits: The living habits of locusts are actually a major factor leading to locust infestations. Because locusts generally live in groups, if they are not controlled in time, they are very easy to become plagues.
The ability of locusts to reproduce is also very strong, and in a suitable environment, their reproduction can be very terrifying. And locusts have a very mixed feeding habits and are able to feed on a variety of plants. Moreover, when locusts lay eggs, they will hide their eggs in deep ground, which is difficult to destroy.
In addition, the flying ability of locusts is also very strong, and it will be difficult to control it.
3. Climate warming: Climate warming is also easy to lead to locust infestation, especially in winter, when the temperature rises, which is very beneficial to the increase of locust overwintering eggs. In addition, various factors such as drought and grassland degradation can create a suitable environment for locusts to lay eggs.
Moreover, locusts are very adaptable, and can survive in an environment where many other insects and birds cannot survive. It also inhibits the activity of a filamentous fungus that causes locust disease, leading to a sharp increase in numbers. Therefore, there are experts who say that global warming will cause locust plagues to become more and more serious in the future, which will have a serious impact on food growth.
4. Excessive insect density: There have been special data surveys showing that the excessive density of locusts is also an important factor causing locust plagues. Locust swarms are densely populated and line up in the same direction.
Because locusts are a kind of isolated nymphs in the beginning. They tend to avoid each other, but if resources are scarce, they will affect each other. Then it becomes an orderly swarm of locusts, and the swarm of locusts will act in an orderly manner, and when it enters the habitat of neighboring locusts, it will cause more and more locusts to join, thus causing locust plagues.
Shu Han, known as the land of abundance, is a famous area of floods and droughts in history. The reason why it is called the land of abundance is also due to the prosperity and development of this region due to the later construction of water conservancy. >>>More
The introduction of natural enemies of locusts, ducks and other animals to destroy them, and secondly, can be killed with tools.
Because in modern times, there are many means that can be used to control locust plagues, such as returning farmland to forests, controlling deserts, and so on.
Recently, the team of the Chinese Academy of Sciences successfully revealed the culprit of the locust plague. It is reported that the team of academician Kang Le of the Institute of Zoology of the Chinese Academy of Sciences discovered a locust swarm pheromone molecule, revealing the mystery of locust swarming. The results were recently published in the international academic journal Nature. >>>More
The author is Rabindranath Tagore, and this poem was published in the 14th issue of Reader magazine in 2003, signed by Rabindranath Tagore, and sourced from "Birds". >>>More