Suitable for crops

An effective post-emergence herbicide for controlling dicotyledonous weeds in rapeseed.

Active ingredient :    clopyralid + picloram, 267 g / l + 67 g / l

Formulation :    aqueous solution, BP

Tare unit :    5 l canister

Hazard class :   hazard  class 3 (moderately hazardous compound)

Guaranteed shelf life :    2 years in the original packaging at temperatures from 0 ° C to plus 30 ° C

Регламент применения препарата


Harmful object

Method of application, processing time, limitations

The consumption rate of the drug, l / ha

Waiting time

(multiplicity of treatments)

Spring rape, winter

Annual and perennial dicotyledonous weeds

Spraying of crops from a phase of 3-4 leaves to the appearance of flower buds in the culture


60 (1)

The flow rate of the working fluid is 200-300 l / ha

Mechanism of action

Clopiralid and picloram have a systemic effect, easily penetrate the plant, mainly through the leaves (but maybe through the roots); quickly spreads throughout the plant, including the root system, blocking the growth points of meristematic tissues. The action of the herbicide is based on the auxin type reaction. Being a synthetic form of natural plant hormones, clopyralid and picloram replace the plant’s natural hormones, blocking their functions. Oversaturation with synthetic hormones leads to disruption of growth processes and plant death. Destroyed both the ground part and the root system of weeds, including the buds 

Range of action of the drug

The drug based on clopyralid and picloram is used to destroy annual and perennial dicotyledonous weeds, including those resistant to 2,4-D and 2M-4X, mainly from the family Asteraceae and buckwheat: chamomile, field sow thistle, field calf, Tatar lettuce, dandelion, thistle, mountaineer, buckwheat, bindweed, etc., in rape crops. Successfully destroys dicotyledonous weeds, such as thistles, chamomiles, cornflowers, and godson, the most problematic rape crops.

Визуальные признаки и скорость воздействия препарата

Sensitive weed growth stops 2 hours after drug administration. Visual symptoms of the lesion (stunting, deformation of the leaves and the stem) appear 2-5 days after the application of the herbicide, and complete death, depending on the type of weed and weather conditions, after 2-3 weeks.

Compatibility with other drugs

Meridian can be used with preparations based on haloxifop-R-methyl (in case of clogging of crops with wheat grass creeping), with some insecticides, fungicides, liquid nitrogen fertilizers. It is not recommended to mix Meridian with growth regulators.

The influence of environmental conditions on the effect of the drug

The drug is recommended to be used when the average daily air temperature exceeds +8 о С.

Processing should not be done before frosts or immediately after frosts.

Precipitation 1-2 hours after the use of the drug does not affect its effectiveness.

Recommendations for the introduction of the drug

The meridian is characterized by a wide range of possible application periods: from the phase of 3 true leaves to the appearance of flower buds in rapeseed, the size (diameter) of which should not exceed 1 cm.

The maximum effect is achieved when processing young, actively growing weeds. Annual weeds should be in the 2-6 leaf phase, and perennial root weeds in the rosette phase. In the fight against tenacious weed – one of the most problematic weeds in rapeseed crops, the treatment is most effective when the weed height is up to 8 cm. With a weed height of 9-15 cm, the drug inhibits the growth and development of the bedstraw, which remains in the lower tier of the crop, does not form seeds and does not pose a threat to the crop and the quality of rapeseed.


First aid for poisoning:

If there are signs of malaise (nausea, weakness, dizziness, headache), the victim must be removed from the danger zone to fresh air, carefully remove clothing and a respirator, avoiding the possibility of the drug getting on the skin or respiratory organs.

If the product gets on the skin, immediately remove contaminated clothing, remove the preparation with a paper towel, a piece of cloth or cotton wool, avoiding rough rubbing of the skin, and then thoroughly wash the skin with soap and water.

In case of contact with eyes, rinse immediately with plenty of clean, running water.

If the drug enters the stomach, immediately give a few glasses of warm water with activated charcoal to drink (based on 1 g of sorbent per 1 kg of body weight), then induce vomiting by irritation of the posterior pharyngeal wall. Repeat this several times to more completely remove the drug from the body.

In all cases of poisoning after first aid, the victim must consult a doctor.

There is no specific antidote. The treatment is symptomatic.


Methods for neutralizing spilled or spilled pesticide:

All neutralization measures are carried out using personal protective equipment in a room equipped with supply and exhaust ventilation or in the open air, on a specially equipped site.

When a significant amount of the drug is spilled onto the soil, it should be prevented from entering the sewers or water bodies. Pour the spilled preparation with sand, earth or sawdust until completely absorbed, then collect the adsorbent material in a container, seal the containers and send them for further disposal. The land from which contaminated soil has been removed is treated with a solution of bleach and dug up.

Contaminated soil and spilled preparation in containers are treated with a solution of bleach until the complete decomposition of 2,4-D acid (20-24 hours) and washed with water.


Methods for destroying or disposing of pesticide:

Destruction and neutralization of the drug, waste not subject to disposal, containers from under the drug are carried out in accordance with SN 3183-84 “The procedure for the accumulation, transportation, neutralization and burial of toxic industrial waste”, approved by the USSR Ministry of Health on 06/17/1985. and “Temporary instructions for the preparation for burial of banned and unsuitable for use in agriculture pesticides and containers from them”, VNIPIagrokhim, Ryazan, 1989.

Neutralization of pesticide wastes by treating them with 5% alkali solution or 7-10% sodium salt solution, followed by thermal neutralization.

The disposal of pesticide residues is carried out in specially designated areas. All work related to the disposal of pesticide residues should be carried out in agreement with the local sanitary and epidemiological control authorities and in full compliance with local laws.


Security measures during transportation, use and storage of the pesticide:

In order to prevent poisoning when working with the drug, it is necessary to observe the precautions specified in the “Hygienic requirements for the storage, use and transportation of pesticides and agrochemicals” SanPiN 1.2.1077-01 and in the “Safety Instructions for Storage, Transportation and Use of Pesticides in Rural economy ”(M, 2001).

During work, observe the rules of personal hygiene. At the workplace it is forbidden to eat, drink, smoke.

All work with the drug (opening containers, refueling sprayers, spraying and other work in the treated areas) should be carried out with the mandatory use of personal protective equipment: respirator, safety glasses, cotton overalls, hats, safety shoes. Persons engaged in the preparation of the working solution must have aprons and sleeves made of film fabric. Every week, overalls should be degassed in a soap-soda solution (2.5% soap and 0.5% soda ash), followed by washing in the same solution. Wash rubber gloves and boots with water.

Admission to work with the drug is made after instructing on precautions when working with pesticides, as well as after training in providing first aid measures for poisoning. Adolescents under the age of 18 years, pregnant and lactating women, as well as persons who have revealed a preliminary medical examination of diseases that are a contraindication to working with pesticides, are not allowed to work with the drug. All work is carried out under the guidance of plant protection specialists.

At the places of use of the drug should be a first aid kit.

The drug should be stored in an unbroken factory packaging, equipped with a container label indicating the name of the drug and the date of its manufacture. Storage at temperatures from minus 100C to plus 300C.

Storage of the drug together with food and fodder is not allowed. Storage of the drug is allowed only in warehouses specially designed for this purpose that meet sanitary requirements separately from other pesticides. The warehouse should protect the pesticide from direct sunlight, moisture, contamination and mechanical damage.

Joint transport and storage of the drug with feed and food products is not allowed. Transportation of people with the drug is not allowed.

The distribution of weeds according to the reaction to the drug


Moderately sensitive cereals

leaf ragweed

Cirsium field

blue cornflower

vetch weed field


fruit cock (species)

medicinal smoky

field calendula

clover (species)


common godson


Tatar molokan

sow thistle (species)

nightshade black



chamomile (species)

Galinsoga small-colored buckwheat Tatar

asterisk medium

poppy seed

white gauze (up to 4 leaves) field forget-me-not

pikulnik ordinary

field violet

thrown back

clover (species)

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