Why is there a locust plague in a year of great drought and malaria is prevalent in low lying and wa

There is no environment where locust larvae live.

The root cause is that the ecological imbalance caused by the drought has intensified, resulting in the proliferation of locusts adapted to the drought, and the imbalance can be adjusted under the condition that biodiversity can still play a role, and the better the biodiversity, the smaller the fluctuation.

Because they're looking for food too! There's nothing to eat, so come and look for it near humans!!

Because they have no food to eat.

Locust plagues tend to occur in drought years because of the many benefits of arid conditions for locust reproduction, growth, development and survival. Because arid soils are relatively solid and have a moisture content of 10 to 20 percent, they are most suitable for laying eggs, so they are prone to locust infestations.

Drought causes locusts to multiply and grow rapidly, causing disasters in two ways. On the one hand, in dry years, when the water level drops, the soil becomes more solid, the water content decreases, and the ground vegetation is sparse, the number of eggs laid by locusts increases considerably, sometimes up to 4,000 5,000 eggs per square meter of soil, and there are 50 80 eggs per egg mass, or 200,000 eggs per square meter.

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;

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.

In ancient times, it was common to create a very toxic drug to destroy locusts, but the drug could also damage crops.

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.

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.

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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. <>