Potato is one of the important agricultural products that is considered as the main food source after wheat and rice. Potato cultivation, like other crops, is attacked by harmful agents such as pests, diseases and weeds. If these pests and diseases are not considered and controlled, they will cause significant damage to the production of this product.

Weed Definition: Weeds are said to be unnecessary and unnecessary plants that grow unintentionally outside of their original location for the crop. Plants of any kind that have become weeds may be deemed unnecessary. Plants may also be necessary in a particular case if they need to be controlled as a weed at other times and places, such as alfalfa or wheat and barley inside potato fields.
Weed loss of potato fields
Occupying the environment, either through the roots or in the form of air, which narrows the space and vital area for potato plants and reduces its growth.
Absorption of nutrients and water as well as consumption of air oxygen and use of sunlight and remove them from the reach of the main plant.
Decreased product hygiene or quality due to the possibility of food poverty of the main product.
Creating a suitable environment for the growth and development of plant pests and diseases.
Weakening the growth of the main plant and reducing the production of potatoes.
Weed control methods for potato fields
Due to the fact that the damage caused by weeds is considerable and economical, so controlling and eliminating them in different and possible ways is necessary and necessary, and to control the weeds of potato fields can be done in the following two ways:
Mechanical combat
Mechanical control means the removal of weeds mechanically and manually, such as weeding or destroying plants using a shovel or by pulling the furrow inside the furrows and furrows in mechanized and rows of fields. Between weeds, the soil of the fields is softened to allow better growth of potato plants.
Chemical control
The second method of control is the use of herbicides, which is the easiest way on large farms and in places where there is a shortage of labor. There are usually two common types of herbicides used:
Paragut or Gramaxon herbicide, which is a general herbicide and is used in potato fields before the potato plants grow and emerge in the amount of 2-3 liters per hectare. This type of herbicide does not have a negative effect on the soil, but if it is consumed after the potato crop grows, it will destroy the potato plants.
Sankor herbicide, which is a special herbicide for potato fields, which can be used to kill weeds at a rate of 1 - 0.5 kg per hectare, ie in light soils, until the leaves of the potato plants are 2-3 leaves. He consumed half a kilo and one kilogram in heavy and clay soils. This toxin does not harm the potato plants until they have 2-3 leaves, but if the potato plants have grown more than this amount, it will also irritate the main plants. What is important in using herbicides in different fields is to observe the appropriate fighting time and the exact amount of poison. Failure to do so may not have the desired effect.
Sankor can be eaten during or after the germination of potatoes.
When the potato plant reaches a height of 10 cm, re-consumption of sankor should be avoided.