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Betaren 22 ®, OEC

Phenmedipham 110 g/l + desmediphan 110 g/l

Postemergence herbicide for controlling annual bilobate weeds, including amaranth, on sugar beet plantings.

General information


  • highly effective at reduced concentration of the active ingredient due to innovative preparative form OEC;
  • highly efficient against annual bilobate weeds, including pigweed, on beet plantings;
  • highly compatible as part of prepared mixtures with other herbicides to enhance the spectrum of action.

Preparative form
Oil emulsion concentrate containing phenmedipham 110 g/l + desmediphan 110 g/l.
Do not apply on beet plantings weakened by frosts, heat, and pests.
Storage conditions
Keep the preparation in a room dedicated for pesticide storage. Storage temperature range – minus 10⁰C to plus 35⁰C. Stir before use.
Shelf life
3 years.
Hazard class
Hazard class III, moderate hazard.
5 liter PE container
Schyolkovo Agrokhim JSC, Russia.
Schyolkovo Agrokhim JSC, Russia.


Mechanism of action
Active ingredients inhibit photosynthesis, carbon dioxide digestion by plants, and phosphorylation process, thus causing disturbance of the energy balance and basic metabolic reactions. Phenmedipham and desmediphan penetrate through leaves and have a translaminar effect.
Oil emulsion concentrate improves significantly herbicide absorption. Particularly, oil serves as a conductor of the active ingredient through the wax layer of a leaf and facilitates preparation penetration in deeper layers of a weed. When applied on a weed, oil emulsion distributes evenly and forms a film on the leaf surface preventing preparation evaporation and washing-off. This helps maintain preparation activity that does not depend on weather conditions.
Protective period
The preparation affects weeds present in the plantings during spraying, and its action time depends on time before the next wave of weeds, which is function of weather conditions during application. If the second wave appears with a delay, the action time will amount to 3 or 4 weeks or more, i.e. beet plants will demonstrate normal growth at their earlier stages, when the crop is most sensible to weeds.
Speed of action
Visible signs of exposure appear in 4 to 8 days after treatment.
Range of inhibited weeds
Annual bilobate weeds, including pigweed (species).
Compatibility with other pesticides
To enhance the spectrum of action, use a preparation containing herbicides against cereals (Healer, Forward, Furex, Pantera, etc.) and against sow thistle (Lornet).

Usage regulations



Harmful plants

Consumption rate

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

Wait time (application frequency)

Preparation, l/ha

Mix, l/ha

Sugar beet, fodder beet

Annual bilobate weeds (including amaranth species)





Successive spraying of plantings at seed leaf stage of weed growth (1st, 2nd and 3rd waves) -(3) 




Successive spraying at 2-4 leaves stage of weed development (1st and 2nd waves) -(3)



Planting spraying at 4 real leaves stage and earlier stages of weed growth -(3) 

Application technique. Mix preparation method
Prepare the mix immediately before use and apply during the same day. The sprayer shall be provided with an agitator and water pump for filling. The agitator shall be activated as water starts flowing into the tank. To prepare the mix, fill the sprayer tank with a small amount of water (1/4 of volume), then add the preparation dose and top up with water to the required volume while intensively stirring the mix.
Prepare the mix and fill the sprayer on dedicated sites that are disinfected afterwards.
When using prepared herbicide mixes, these shall be prepared in line with the recommendations for each particular preparation.
Use ground-based boom sprayers Amazone, OPSh-15-01, OP-2000-2-01 or similar.

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