Description of herbicides for onion treatment and instructions for use against weeds

Onions are one of the most sensitive cultivated plants to weeds, therefore, specialists have developed a large number of chemical preparations intended for its treatment. Herbicides for spraying onions must be applied systematically, having previously studied the instructions on the manufacturer's packaging.

Common weeds in onion plantings

Onions need the maximum amount of nutrients. He receives most of the nutrients from the soil. But weed vegetation, growing with a massive rhizome, does not allow the bulb to develop normally, absorb and store organic and mineral components, thereby provoking the death of more than 85% of the crop.

Weed control is a compulsory agrotechnical method when growing vegetables that have a bulb or root crop.

The following types of weeds are known for growing onions:

Previously, when processing fields, only mechanical weeding was used, but the method turned out to be ineffective, since it was caused by huge material and physical losses, the death of more than 10% of the bow. Practice has shown that labor-based onion farming reduces yields by 20 percent.

Therefore, the best solution is to use chemicals to eliminate weed crops.

List of funds

Before buying a herbicide, you need to familiarize yourself with their variety, study the features of well-known brands that are used by experienced gardeners and enterprises on an industrial scale.

"Bagheera"

Selective postemergence herbicide that fights against annual and perennial grasses, controlling their growth. The active substance is quizalofop-P-tefuril in an amount of 40 g / l. The drug has a detrimental effect on the root system, which prevents the re-growth and development of weeds.

The main advantages of the drug are that it is highly effective regardless of the temperature regime, does not have a phototoxic effect and does not affect crop rotation.

For processing, 200-300 liters per 1 hectare is enough.Spray in the phase of 2-4 true leaves of the weeds.

"Graminion"

Selective systemic herbicide for control of a wide range of cereal weeds, especially wheatgrass. The composition is dominated by cletodim in a volume of 150 g / l.

The advantages of the drug are high speed of action, it quickly penetrates into all parts of weeds, including their rhizomes, and stops their development.

Working fluid consumption from 100 to 300 l / ha. It can be used in the phase of 2-3 true leaves. Not used when growing feather onions.

Goal 2E

The herbicide is able to protect onions from the harmful effects of annual weeds. The composition includes the substance oxyfluorfen. Its amount is 240 g / l. Quickly eliminates ragweed, Mary, cruciferous mountaineers and other dicotyledons. At the same time, the drug controls the re-germination of weeds, without limiting further crop rotation.

1 hectare requires 200-300 liters of working fluid. Irrigation should be carried out only after the cultivated plant has entered the phase of 2 true leaves. The preparation is not intended for growing onions with feathers.

"Galigan"

Selective herbicide suitable for pre-emergence and post-emergence use. The active substance is oxyfluorfen (240 g / l). "Galigan" is considered an irreplaceable preparation for the cultivation of onions and garlic. The effect occurs within 3-4 hours after treatment.

For the treatment of annual and biennial weed crops, 200-300 ml per hectare is enough. Not applicable for feather onions.

"Akzifor"

A unique modern herbicide for the suppression of weeds in the cultivation of onions and sunflowers. The active ingredient is oxyfluorfen (240 g / l). Application before and after germination is possible. After use, an increased growth of cultivated plants is observed and the germination of seeds increases significantly.

Spray in the amount of 200-300 l / ha. The procedure is carried out in the phase of 2-3 leaves of crops. Not intended for feathering onion.

"Gaitan"

Systemic selective herbicide for pre-emergence treatment. Among the components, pendimethalin prevails in the amount of 330 g / l. It is able to protect the crop from weeds for a long period, preventing their germination, and also has no contraindications for crop rotation.

For processing, 200-400 liters of solution per 1 hectare are used. The drug is prohibited for feathering onions.

"Lemur"

Postemergence herbicide for the control of annual and perennial weeds. The composition includes quizalofop-P-tefuril in an amount of 40 g / l. It inhibits the vital activity of unnecessary vegetation for an hour, stopping all biological processes.

As soon as the weeds reach an early stage of development, irrigate according to the scheme of 200-300 liters of working fluid per 1 hectare.

"Zlakterr"

The herbicide is aimed at controlling cereal weeds. The composition contains cletodim (240 g / l), thanks to which the drug is known for its biological effectiveness and is characterized by high selectivity to crops.

Application does not depend on the phase of the grown plant, the main thing is not to miss the active phase of weed growth. For a positive result, take 200-300 l / ha.

"Graminion"

Selective systemic herbicide for removing an impressive range of annual and perennial weeds in a short period of time. The preparation contains cletodim in an amount of 150 g / l.

For processing, select the desired phase of the weed (2-6 true leaves). The consumption of the working fluid is 100-300 liters per hectare.

"Zlakoff"

A versatile herbicide that fights any type of cereal weed at high speed. The main constituent substance is cethodim 240 g / l. It is safe for the cultivated crop, does not linger in the soil and does not affect further crop rotation.

The effect can be achieved by applying 200-300 liters of solution per 1 hectare of field.

"Cobra"

Productive herbicide designed to eradicate a wide variety of monocotyledonous and dicotyledonous weeds.The composition contains pendimethadine 330 g / l, which provides full protection of the cultivated plant during the entire growth, and has a positive effect on its germination. The drug has no contraindications for crop rotation.

Spray before crop emergence, the amount of the working composition is 200-300 l / ha. The substance is not suitable for growing feather onions.

"Legionary"

Selective herbicide for processing onions of all generations (but not for feathers). The active substance is fluazifop-P-butyl (150 g / l). Spraying does not depend on the phase of development of the cultivated plant, while the weed must reach an intensive stage of growth (2-4 leaves).

The optimal consumption rate of the composition is 200-300 l / ha.

"Demeter"

Systemic herbicide - a tool against annual dicotyledonous plants. The active ingredient is 350 g / l. The substance is able not only to get rid of weeds, but also to destroy their root suckers.

Use 200-300 liters of working substance per hectare.

Which drug is better to choose?

When choosing a drug, take into account the species diversity of weeds and the individual characteristics of the crop variety. It is also equally important to take into account the growth phases of plants and, depending on them, select the appropriate preparation.

Features of the use of herbicides on onion plantings

Weed control should be started long before onion planting, usually the processing time is set in the fall to prepare the field for winter by removing perennial weeds and their root suckers.

The main thing is to correctly time the application of the herbicide so as not to have a detrimental effect on the crop. After sprouting onions, it is recommended to wait for 3-4 true leaves to appear and cover them with a dense waxy bloom.

Important! If plants are treated in the phase of one false leaf, there is a risk that the crops will die from the action of the desiccant.

Take a look also

Instructions for the use of herbicide Dialen Super, principle of action and consumption rates