It is known as plague to sudden and massive irruption from insects , animals or other organisms of the same species that causes different types of damage. The concept, however, can be understood in different ways.
The red spider, the ant and the aphid are some of the pests that can affect the plants . When they are registered on a large scale and affect crops, this type of pests can destroy whole crops and prevent the normal development of farming . To prevent a pest from affecting a plant, it is necessary to resort to pesticides , which are substances that remove or eliminate the species that are part of the pest.
The black fly is a known pest that can measure between 3 and 5 millimeters and has a dark color. In his adulthood he lives in the plants near the rivers and spawns near the Water or in it. While some species tolerate contamination, larvae cannot survive if they do not have clean, oxygenated water. In general, the black fly is found in the high segments of the rivers or where there is more current.
It is also possible to call the advance of a pest disease in a region A bacterium or virus that infects an increasing number of people in a city or country can cause a plague. In this sense, it is known that Europe suffered in the XIV century the consequences of black plague (or black plague).
In some areas, there is even talk of human plague to refer to the negative consequences of overpopulation on the planet. The number of people, linked to consumer trends, make the human being act like a pest and cause serious damage to the environment.
Peruvian philosopher and writer Ricardo Paredes Vassallo, born in 1952, published a book entitled "The human plague", in which it raises the level of destruction that human beings cause to our planet. The author ensures that the wealth It is good but with a limit, which we have crossed to start producing banalities.
Vassallo walls exposes that we humans are destroying the real planet to build an unreal one , that can satisfy our twisted desires; he believes that his mission as a philosopher is to warn the world of this dangerous Go ahead before it's too late.
The first problem of the human species is that it is considered superior to the others and with the right to appropriate animals, plants and land to your liking to do with them what you want. This lack of consideration and compassion, coupled with the possibilities offered by technology has made us a real plague, the most dangerous, since we are the only one capable of ending the lifetime on this planet
In the symbolic sense, finally, it can be described as a plague to a catastrophe or one tragedy that affect a population or to a territory. For example: “Unemployment is a difficult pest to fight”, “The kidnapping has become a plague for this city”.
Similarly, the crime It is also often considered a plague in very dangerous cities, in which police work is poor or insufficient due to the volume of crime present in its streets. Among the main factors that cause such a situation is the lack of investment in the education system by the State, a decision that leads the population to choose self-destructive paths as a way of life. The saying "crime begets crime" is a good way to summarize this unfortunate phenomenon.