It was with the advent of agricultural enterprises that occupy large areas that, in the mid-20th century, came the so-called modern agriculture as a way of responding to the growing need to produce larger amounts of food more quickly.
This type of agriculture uses large-scale mechanized work which favors the production of foodstuffs. Are the machines who performed the vast majority of agricultural work such as weeding, irrigation, pesticides and fertilizers etc.
This is one of the technological advances used to monetize the large plantations, however, the use of synthetic fertilizers essential for the growth of plants, and the use of pesticides to combat diseases and pests, it also brings large profits.
In the practice of modern agriculture, farmers resort to a monoculture, that is dedicated to the production of a single species. Wheat, rice, maize, tomatoes and potatoes, are examples of crops usually grown under this scheme.
One of the great disadvantages for plants under this scheme is the largest crop susceptibility to infestation by weeds and diseases.
Since a few decades, have been developing new techniques with the objective of improving plant productivity and lessen the impact of this activity on ecosystems.
However, we can say without a shadow of a doubt that the most striking feature of modern agriculture is the use of chemical control as a method of combating pests.
In many circumstances, to ensure good agricultural production is the use of chemicals that fight harmful species or act as plant growth regulators. These products are referred to as pesticides which can highlight: insecticides, herbicides, fungicides, rodenticides, etc.
Each year are used in the world more than three million tons of these chemicals, particularly in developed countries.
A method used for the release of pesticides is by plane. In this form, just 0.1% to 2% of pesticide dispersed by airplane reaches the pests-target. To offset losses, it is necessary to post about 30% more pesticides than in applications made on the ground.
Pesticides that fail your target end up contaminating the air, surface water, groundwater, and other organisms, including humans.