In the streets of Manzhouli in Hulunbuir City, Inner Mongolia, there were a large number of small flying insects, although the small flying insects were very small, but the number was extremely terrifying, and the small flying insects that overwhelmed the earth formed a "black fog", just like the black smoke released by the white bone essence in "Journey to the West", this scene is so crazy that some people jokingly said: Where is the demon coming?
A citizen took a small video in which the small flying insects were everywhere, either staying on the vegetables and fruits in front of the vegetable vendors, or staying on the clothes of humans. The small flying insects in the air also fly everywhere, and as long as you open your mouth, you will eat a bite of "protein".
Not only that, the little black fly will also fly into the mouth, ears, eyes, people in order to avoid these small flying insects, have to use plastic bags, raincoats and other tools to dodge.
So the question is, why do small black worms suddenly appear in Manchuria? Does the presence of these little black worms mean a sudden change in the weather?
To find out why the little black worms suddenly appeared in Manchuria, you also need to find out what these little black worms are.
In fact, whether it is a video or a photo taken by people, these little black worms are really too small, and there is no detailed picture to see what they look like.
However, judging from the size, the time of appearance and past news reports, these small black worms are likely to be aphids. Aphids are actually a very large family, so far people have found about 4400 species of aphids, different species of aphids vary in size, ranging from 1-10 mm in length.
More importantly, the appearance of small black worms flying in Hulunbuir Manchuria is not the first time, as early as September 2019, there was also a large-scale small black worm invasion of the city, at that time driving on the street is a very dangerous thing, because the small black worms in the sky will not cover the entire glass in a short while, people walking on the road, also need to cover their mouths and noses, otherwise the small black worms will enter the mouth, nose, ears.
According to experts: these small black worms, that is, aphids, this large-scale invasion of the city, is their last carnival.
In 2018, Hulunbuir Yakeshi was also invaded by a large number of aphids, and a large number of flying insects appeared in the city, and they would be covered with aphids when they went out for a few steps, and if they did not wear glasses to go out, there would be aphids breaking into the eyes after taking a few steps. Some citizens said: This is not enough to let the aisle back.
Why do swarms of aphids appear on city streets? Are they harmful to humans?
Some experts say that this phenomenon is actually more common. The aphids that appear in Hulunbuir are actually common species in the local area, and their number is originally large, but they are usually scattered on the host and will not form such a large-scale insect infestation.
However, aphids are very sensitive to weather changes, and once the weather gets cold, they will collectively leave their hosts and begin to look for a mate and a place to lay eggs for the winter.
Aphids are born to produce offspring and can produce offspring without even mating with males. But in the autumn, aphids begin to produce male larvae and undergo sexual reproduction, that is, to find mates to mate and to lay eggs. These eggs are able to withstand the colder winters, and by the spring of the following year, they hatch female aphids with or without wings.
Of course, because the tropics are warm all year round, aphids will always reproduce asexually, that is, they can produce offspring without mating with males. At the same time, they do not overwinter in an oviparous manner, which is why large-scale aggregation of aphids rarely occurs in the tropics, and only in areas with distinct seasons will aphids gather on a large scale when the weather is cooler.
Recently, the temperature in Manchuria is dropping, if the temperature continues to drop, then the aphids will all freeze to death, in order to retain the "fire of life", they began to look for mates, and find a place to lay eggs for the winter, so there was a large-scale swarm of aphids.
However, the aphids flying in the Manchuria of Hulunbuir are actually their last revelry, and in a few days they will die en masse due to the cold weather.
Although the number of aphids is overwhelming, we must say that aphids are not harmful to humans, and they do not transmit diseases to humans. But for trees, this is not good news, because the main harm of aphids is trees.
The older generation often associates the abnormal behavior of nature with the auspiciousness of the human world. But in fact, the large-scale appearance of aphids is not a precursor to disaster or sudden weather changes.
The first is because aphids are clustered on a large scale almost every autumn, but there are no major natural disasters in the area.
Secondly, scientists already know the reason why aphids appear in large numbers in the autumn, and there is no connection with natural disasters.
However, aphids are more sensitive to the weather, and they appear in groups, indicating that the local temperature is dropping, but not necessarily suddenly. If you have to associate their swarms with sudden weather changes, it is probably the swarms of aphids, which means that the weather is getting cooler and you need to pay attention to clothing.
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