Potato herbicides: 3 popular drugs, post-emergence treatment

Potatoes are the most common vegetable crops grown everywhere. For a good harvest, you need to provide not only good care, but also actively combat weeds, which compete with potatoes for nutrients, water and other important factors. Herbicides are used to control weeds. Today we will look at the most effective herbicides for potatoes.

Potato herbicide - what is it

Herbicides are chemicals designed to inhibit the growth of weeds.

There are many potato herbicides that differ from each other:

By the principle of exposure:

• Systemic - are absorbed into the plant and completely infect the weed. Used to suppress perennial weeds.
• Contact - affect the weed plant from the outside, damaging its vegetative, green part. Used to suppress annual weeds.

Both types are quite effective. Sometimes these two types are used at the same time.

By the nature of the impact:

• Continuous impact - destructive for all types of plants, including cultural ones. Therefore, it is most often used before sowing when only weeds are growing in the field. Perfect for the improvement of abandoned land. It is mainly used on an industrial scale; it is not easy to find applications for such a tool in your garden, because it will destroy everything.
• Selective (selective) action - these herbicides are poisonous only for certain varieties of plants and completely non-toxic for others. They are presented in two types:
• Widely selective - I affect certain classes, for example, with all dicotyledonous plants, but do not touch monocots.
• Narrowly selective - affect only certain varieties and families.

By the terms of use:

• Pre-emergence - they are introduced before the emergence of shoots, or they are treated with the soil before sowing. Many types of such herbicides leave a film on the soil, upon contact with which young shoots of weeds die.

The most popular pre-emergence herbicides

• Roundal - contains glyphosate. They cultivate the soil two weeks before planting vegetables. Affects the root system of weeds.
• Centurion - contains cellodymes. He, penetrating into the roots, causing their death. Used to suppress annual weeds.
• Boxer is the active substance of prosulfocarb. Effective against dicotyledonous weeds.

• Post-emergence - used after the emergence of cultivated plants. They damage the aerial parts of the weeds. When using them, you can not strictly observe the dosage, since even a small amount of this herbicide inhibits the growth of weeds.

The most popular postemergence herbicides.

• Shogun - as part of propakwizafop. Suppresses cereal weeds. Actively growing plants, about 11 cm high, are treated with it.
• Alpha Mais - effectively inhibits the growth of dicotyledonous weeds. The action occurs 6-15 after spraying.
• Tornado 500 - contains glyphosate. It copes well with both two and monocotyledonous weeds. The action of the herbicide can last up to 30 days.

Potato herbicides: TOP 3 best

Zenkor.

Potato herbicide Zenkor is a selective herbicide. Absolutely safe for nightshade crops. Contains metribuzin at a dosage of 600 g / l. Used to suppress cereal weeds.

Decomposes in soil in three months.It affects young shoots, and also forms a film on the surface of the earth. The herbicide for potatoes Zenkor is produced in the form of a solution and in the form of granules.

Titus.

Has a selective effect. Use after the plants have emerged. The composition of herbifid for potatoes Titus includes rimsulfuron, which blocks the synthesis of acetolactone in the leaves. Copes effectively with annuals and biennials. The first signs of wilting of weeds appear on the third day, and complete death on the fifteenth.

Potato herbicide Titus cannot be used in conjunction with phosphate fertilizers. When using it, you need to increase the frequency of watering. Sometimes leads to yellowness of the leaves of potatoes, but not for long. It is best not to use this herbicide on bushes intended for seed.

Lapis lazuli.

Herbicide for potatoes Lazurite: photo

Potato herbicide Lazurite is a universal herbicide. It is used both before and after planting. Contains metribuzin at a dosage of 700g / l. This drug is strong and is usually only used once in an entire season. In extreme cases, twice, before planting, and after the potatoes have reached a height of 10-15 cm. The substance must be handled very carefully, do not allow contact with the skin and mucous membranes.

Potato herbicides: requirements for use

• The area where the drug will be applied must be uniform. Do not contain clods of earth, as this does not contribute to uniform treatment with the preparation.
• Be sure to water the soil before processing.
• It is not necessary to close the preparation into the soil deeply 4-6 cm.
• Herbicides give the greatest effect on sandy loam soils. Efficiency decreases in fertile soils.
• You can process it at a temperature of at least 5 degrees. If it is lower, then the efficiency decreases.
• Before using the substance, you need to familiarize yourself with which plants it inhibits, so as not to harm cultivated species.

Potato herbicides: treatment effect

• Cell membranes are destroyed.
• Herbicide treatment of potatoes inhibits photosynthesis in dicotyledonous weeds.
• Reduces the formation of fats.
• Destroys leaf mesophyll.
• · Suppresses the synthesis of amino acids.
• Treating potatoes with herbicides inhibits the ability of cells to divide.

Often, herbicides for potatoes can harm the plant itself, especially if you do not follow the rate and application rules. If you notice that the treatment has badly affected your plants, then replace it with a less aggressive one. To avoid addiction of the weeds to the drugs, alternate between them.

Supplementary herbicide preparations

Potato herbicides alone are not enough to ensure a good harvest. You should also use:

• Fungicides - a drug that fights fungus.
• Bactericides - inhibits the growth of pathogens.
• Insecticides - fight insect pests.
• Acaricides - fight ticks.
• Bactericides - inhibit the growth of bacteria.
• Nematocides - against nematodes.
• Folk remedies - help with any type of infection.