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Shkval®, WSC

Imazapyr 250 g/l

Tackles root problems!

Systemic herbicide of continuous action intended to control annual and perennial cereal and broad-leaved (including tree species) plants at non-agricultural facilities

General information


  • much more efficient than glyphosate herbicides;
  • excellent soil activity - 100% control of unwanted vegetation for 2 years;
  • reliable exterminates herbs, shrubs and trees, including difficult-to-eradicate and quarantine weeds (willow, blackberry, bindweed, Russian centaury, etc.);
  • may be applied both before weed emergence and over emerged weeds;
  • unlimited timing of protective measures;
  • no adverse effect from precipitation in an hour after treatment;
  • quickly penetrates and exterminates plants under a layer of dust and oil;
  • steadily high efficiency in all regions of Russia with different soil and climatic conditions and species composition of unwanted vegetation.

Preparative form

Water-soluble concentrate containing imazapyr 250 g/l.

Transport and storage conditions

Comply with all conventional rules of toxic substance transport. Keep the preparation in a room dedicated for pesticide storage. Storage temperature range - minus 10⁰C to plus 25⁰C. Stir before use.

Shelf life

3 years.

Hazard class

Hazard class 2, high danger.


5, 10 liter PE container


Schyolkovo Agrokhim JSC, Russia.


Schyolkovo Agrokhim JSC, Russia.


Mechanism of action

The preparation is absorbed by roots and leaves, moves along phloem and xylem, and accumulates in growing points. The active ingredient inhibits synthesis of branched amino acids that control protein synthesis and cell growth. This results in impairment of protein synthesis, thus disturbing DNA synthesis and retardation of weed cell growth.

Protective period

Protects against weeds for at least a season. On non-agricultural lands, the effect from the preparation may last for 3 to 5 years.

Speed of action

Visible signs of weed death appear in 2 to 4 weeks after treatment. Deciduous trees start shedding leaves for one or more months.


Non-agricultural lands (protection zones of power transmission lines, glades, routes of gas and oil pipelines, embankments, and right-of-ways for rail and motor roads, aerodromes and other industrial sites).


Efficient when used alone. May be mixed with other herbicides.

Potential for resistance


Usage regulations

Crop / object of treatment

Harmful plants

Preparation consumption rate, l/ha

Mix consumption rate, l/ha

Method, time and conditions of application. Application time for manual (machinery assisted) operations

Wait time (application frequency)

Non-agricultural lands (protection zones of power transmission lines, glades, routes of gas and oil pipelines, embankments, and right-of-ways for rail and motor roads, aerodromes and other industrial sites).

All kinds of weeds, including ragweed and Russian centaury



Treatment of weeds at their earlier stages of growth, including ragweed at 2-4 leaves stage and Russian centaury at shooting stage 15(15)



All kinds of unwanted herbs and trees (asp, birch, alder, willow, pine, fir, etc.)



Treatment of vegetating plants and soil in April to September 15(15)

Application technique. Mix preparation method
Prepare the mix immediately before use. Stir thoroughly in the factory packing the preparation before mixing. Fill the sprayer tank with water to 1/3, add the full preparation dose, and then top up with remaining water to the required volume and stir.
Use backpack sprayers and ground-based boom sprayers OPSh-15-01, OPV-1200-01, ON-400, OP-2000-2-01, or similar.
Prepare the mix and fill the sprayer on dedicated sites that are disinfected afterwards.
No resistant crops.
Recommendations on protection of valuable flora and fauna objects
The preparation is of low hazard to bees – Hazard Class 3, of hazard to fish – Hazard Class 2. Basic provisions of the ‘Guidelines for preventing bee poisoning with pesticides’ and following environmental regulations:
treat plants at wind speed up to 4 or 5 m/sec;
protection boundary zone for bees – min. 2-3 km;
bee’s flight time limitation – 3-4 hours.
Warn apiary owners 4 or 5 days before treatment. Do not apply the preparation by aerial method within the sanitary zone of fishery water bodies 500 m away from the flood line in case of maximum floodwater level, but not closer than 2 km to the existing banks.

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