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BelgiëWeeds
A weed is a plant that grows in a place where it is not wanted. Generally this concept is applied to the species that grow in crops.
In his need to produce food, man has had to take advantage of nature and modify it so that his effort is as efficient as possible, preventing spontaneous vegetation from interfering with the production of his harvests.
Weeds are characterised by their great capacity for dispersal and persistence. They reduce crop yields, invade water channels and agricultural structures. Some of these species with great expansion capacity even alter the natural ecosystems of a territory, displacing in most cases the native flora. From antiquity until the mid-20th century, labour, tillage and crop rotations were the main methods for controlling weeds. Technological advances have allowed evolution towards greater specialisation of chemical products to control weeds, with great advantages over traditional tillage in terms of labour costs, as well as in better use of water, energy saving and improved fertility.
Weeds are classified into three main groups:
In his need to produce food, man has had to take advantage of nature and modify it so that his effort is as efficient as possible, preventing spontaneous vegetation from interfering with the production of his harvests.
Weeds are characterised by their great capacity for dispersal and persistence. They reduce crop yields, invade water channels and agricultural structures. Some of these species with great expansion capacity even alter the natural ecosystems of a territory, displacing in most cases the native flora. From antiquity until the mid-20th century, labour, tillage and crop rotations were the main methods for controlling weeds. Technological advances have allowed evolution towards greater specialisation of chemical products to control weeds, with great advantages over traditional tillage in terms of labour costs, as well as in better use of water, energy saving and improved fertility.
Weeds are classified into three main groups:
- Annuals grow normally, produce seeds and die within a year. In warmer climates, some annuals can survive into a second year. Generally, annual weeds are the easiest to eliminate.
- Biennials live two years. During the first, they are in a period of vegetative development, while in the second they enter a period of flowering and seed production.
- Perennials live more than two years and produce seeds annually.
Below we detail a list of the most common weeds in our country, with a short description, scientific and common, to be able to identify them more easily.