Herbicides for onions: description, instructions for use against weeds

Onion is one of the most sensitive crops to weeds, so specialists have developed a large number of chemicals designed to treat it. Herbicides for spraying onions should be applied systematically, having previously studied the instructions on the manufacturer's packaging.

Common weeds in onion plantings

Onion needs the maximum amount of nutrients. Most of the nutrients it receives from the soil. But weeds, growing with a massive rhizome, do not allow the bulb to develop normally, absorb and store organic and mineral components, thereby causing the death of more than 85% of the crop.

Weed control is an obligatory agrotechnical technique when growing vegetables with a bulb or root.

The following types of weeds are known for growing onions:

Annual and biennial dicots Common cocklebur;Perennial dicotyledonousBristly pooch;Grey foxtail;Common reed;

Plant group	Examples
	Highlander bird; black nightshade; field yaruka; garden purslane; chamomile odorless; field toriza; common ragwort; Common shepherd's purse
	field thistle; Field bindweed
Annual cereals	chicken millet; blood red rosette
Perennial cereals	creeping couch grass

Earlier, only mechanical weeding was used in the processing of fields, but the method turned out to be ineffective, because it was caused by huge material and physical losses, the death of more than 10% of the onion. Practice has shown that cultivation of onions with the use of labor reduces yields by 20 percent.

Therefore, the best solution is to use chemicals to eliminate weeds.

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

A selective post-emergence herbicide that controls annual and perennial grasses by 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.

200-300 liters per 1 hectare will be enough for processing. Spray in phase 2-4 true leaves of weeds.

Graminion

Selective systemic penetration herbicide to control a wide range of grass weeds, especially couch grass. The composition is dominated by cletodim in the amount of 150 g/l.

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

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

Goal 2E

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. Promptly eliminates ragweed, gauze, cruciferous mountaineers and other dicotyledons. At the same time, the drug controls the re-emergence of weeds, without limiting further crop rotation.

200-300 liters of working fluid are needed for 1 hectare. Irrigation should be carried out only after the cultivated plant passes into the phase of 2 true leaves. The drug is not intended for growing onions on a feather.

Galigan

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

For the treatment of annual and biennial weeds, 200-300 ml per ha is enough. Not applicable for feather onion treatments.

Akzifor

A unique modern herbicide for suppressing weeds in the cultivation of onions and sunflowers. The composition includes the active substance oxyfluorfen (240 g/l). Can be used before and after germination. After use, enhanced growth of cultivated plants is observed and seed germination increases significantly.

Spray at 200-300 l/ha. The procedure is carried out in the phase of 2-3 leaves of cultures. Not intended for breeding onions on a feather.

Gaitan

Systemic selective herbicide for pre-emergence treatment. Among the components dominated by pendimethalin 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 when breeding onions on a feather.

"Lemur"

A post-emergence herbicide for the control of annual and perennial weeds. The composition contains quizalofop-P-tefuril in the 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

Herbicide is aimed at combating cereal weeds. Contains Cletodym (240 g/L), thanks to which the drug is known for its biological effectiveness and high selectivity to crops.

The 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 the removal of an impressive range of annual and perennial weeds in a short period of time. The preparation contains 150 g/l Cletodim.

For processing, select the desired phase of the weed (2-6 real leaves). Consumption of working fluid 100-300 liters per 1 hectare.

Zlakoff

Universal herbicide that fights any type of grass weed with great speed. The main constituent is cellodim 240 g/l. It is safe for the cultivated crop, does not linger in the soil and does not affect further crop rotation.

You can achieve the effect by applying 200-300 liters of mortar per 1 hectare of field.

Cobra

Productive herbicide designed for the elimination of a wide variety of monocotyledonous and dicotyledonous weeds.The composition contains pendimethadine 330 g / l, which provides complete protection of the cultivated plant during the entire growth, positively affects its germination. The drug has no contraindications for crop rotation.

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

Legionnaire

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

Optimal application rate of the composition is 200-300 l/ha.

"Demeter"

Systemic herbicide - a weapon against annual dicotyledonous plants. The active ingredient is 350 g / l. The substance can not only get rid of the weed, but also destroy their root offspring.

Use 200-300 liters of working substance per 1 hectare.

Which drug is better to choose?

When choosing a preparation, 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 phases of plant growth and, depending on them, select the appropriate preparation.

Features of the use of herbicides in onion plantings

Weed control needs to start long before planting onions, usually the processing time is set for autumn to prepare the field for winter by removing perennial weeds and their root suckers.

The main thing is to correctly calculate the time of application of the herbicide, so as not to have a detrimental effect on the culture. After onion shoots, it is recommended to wait until 3-4 true leaves appear and cover them with a dense wax coating.

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

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