One: scientific detection finds the spawning ground when the locusts are still in the incubation stage and disposes of the eggs. The life span of locusts is not long, usually half a year. During this period, locusts will lay eggs and die naturally, and then the next batch of locusts will hatch and form new disasters, which will continue to harm human beings. Therefore, the most effective way to prevent locust plague is to destroy locust eggs as soon as possible in the incubation stage. At present, there is basically no locust plague in agricultural areas of China. Locusts in Shandong, Hebei and other places can be said to occur once every few years, and there is no sense of existence.
Biological control of locusts The so-called biological control of locusts is to cultivate natural enemies of locusts, such as chickens, ducks, birds and frogs. These animals all eat locusts. There is a kind of bird called pink starling, whose staple food is locusts, which can eat about 150 birds on average a day. In this area where birds gather, locusts can hardly be seen, and they are eaten as soon as they stir. At present, biological control is also a means to control locusts that we vigorously promote. We attach great importance to it and the effect is good. However, due to the locust plague, locusts are generally based on? Billions? For the unit of measurement, this number is huge.
Three: chemical locust control The so-called chemical locust control means the large-scale use of chemical agents to eliminate locusts. For example, some bacteria can infect locusts and shorten their life span. After spreading the bacteria in locust-infested areas, locusts will gradually die. For example, some chemicals can directly kill locusts. However, the side effects of chemical locust control are also great, which will cause large-scale chemical pollution. Moreover, locusts move fast and often change direction, so it is not easy to track locusts by plane. For example, spraying drugs to kill locusts often throws away air, which is very inefficient. So generally speaking, chemical locust control is usually a killer.
Generally speaking, the first method is radical cure. Because our country has done a good job in this respect, there is basically no locust plague in agricultural areas (there are locusts, but there are no locusts? Disaster? )。 In addition, people often make up jokes on the Internet, saying that the plague of locusts occurred abroad because foreigners didn't know how to eat, and there was no plague of locusts in China because we could eat it at home and the locusts were afraid to come. If we send China's foodies abroad, there will be no locusts. This is typical of being smart and talking nonsense. Because when it comes to eating locusts, we are really not much better than foreign countries. Africans often eat locusts in the same way as others. It's all blown up. But did Africans eat up swarms of locusts? Judging from this desert locust plague, judging from all the locust plagues in history, it is obviously not. ?