Bizon (diflufenican, florasulam, penoxsulam) Corteva - herbicide for winter cereal crops

Bizon - herbicide in winter cereal cultivation

What are the benefits of using the herbicide Bizon?

• Acts with the power of three active substances (3 in 1)
• Has a wide range of controlled weeds
• Enhanced effectiveness
• The dose is standardised for all winter cereals and easy to remember
• Can be applied in autumn over a wide range of cereal growth stages
• Controls almost all dicotyledonous weeds
• Flexible in the choice of subsequent crops

Bizon is a plant protection product, more precisely a selective herbicide. It has systemic action. It is in concentrate form for preparing an aqueous solution.

You can use Bizon to control annual monocotyledonous and dicotyledonous weeds such as: cornflower, field violet, common chickweed, purple dead-nettle, red dead-nettle, corn poppy, scentless mayweed, blackgrass, ground ivy, Persian speedwell, cleavers, volunteer oilseed rape, shepherd's purse, field pennycress.

Bizon acts with the power of three active substances, so you will no longer need to prepare tank mixes with other herbicides. The creators of Bizon have ensured the widest possible range of controlled weeds and enhanced its effectiveness. In other words, it is a 3 in 1 product!

The dose of the herbicide Bizon is easy to remember and fixed. You no longer have to worry about adjusting doses for cereal species or types of controlled weeds. 1 l/ha - simple.

Bizon can be applied in autumn. You can use it over a wide range of cereal growth stages. However, for the best herbicidal effect, choose the application timing from the 1 to 4 leaf stage of cereals (BBCH 11-14).

This herbicide is intended for use with self-propelled or tractor-mounted field sprayers.

What is the content of active substances in the herbicide Bizon?

• Diflufenican (a compound from the pyridinyloxycarboxamide group) - 100 g/l (9.48%),
• Florasulam (a compound from the triazolopyrimidine group) - 3.75 g/l (0.36%),
• Penoxsulam (a compound from the triazolopyrimidine group) - 15 g/l (1.45%).

How does the herbicide Bizon work?

As you know, Bizon contains three active substances that complement each other.

The first substance is diflufenican. It moves only slightly within the plant. It is a contact herbicide. It causes slowing or stopping of the chemical reaction (it is an inhibitor) of carotenoid and chlorophyll biosynthesis in weed cells. Their absence causes bleaching of leaf tissues and cell breakdown. This is especially visible in new tissues. After application, diflufenican remains on the soil surface for a long time. It then forms a thin layer that acts contact-wise on emerging young, actively growing weeds.

The second and third substances are florasulam and penoxsulam. They have systemic action. They are mainly absorbed by cotyledons, leaves and partially by roots. They move throughout the plant. Both active substances are inhibitors of acetolactate synthase (ALS/AHAS). Acetolactate synthase is an enzyme responsible for amino acid biosynthesis. Its inhibition or slowing leads to disruption of protein synthesis, thus inhibiting growth and development of weeds, ultimately causing weed death.

How can I achieve the best effect of the herbicide Bizon?

The best herbicidal effect is achieved if you apply the product to weeds in early growth stages: during germination or shortly after emergence, from the seedling stage to the 2-3 leaf stage.

Do weeds have to emerge in autumn for Bizon to control them?

The product shows herbicidal activity when applied to soil, so it is not necessary for weeds to emerge during autumn application. The product does not control weeds emerging in spring.

Which weeds are sensitive to the herbicide Bizon?

• Cornflower,
• Field violet,
• Common chickweed,
• Purple dead-nettle,
• Red dead-nettle,
• Corn poppy,
• Scentless mayweed,
• Blackgrass,
• Ground ivy,
• Persian speedwell,
• Cleavers,
• Volunteer oilseed rape,
• Shepherd's purse,
• Field pennycress.

In which crops can the plant protection product Bizon be used to control weeds?

• Winter wheat,
• Winter barley,
• Winter triticale,
• Winter rye.

What is the pre-harvest interval and withholding period when using the herbicide Bizon?

The period from the last application of the product to the day of crop harvest (pre-harvest interval): not applicable.

What are the crop rotation recommendations when using Bizon?

The herbicide Bizon degrades in the soil (microbiological degradation) without posing a threat to subsequent crops.

In autumn, after cereal harvest, on fields where Bizon was applied, you can grow: winter oilseed rape, all winter cereals, grasses and stubble catch crops (mustard, crimson clover). Stubble catch crops (mustard, crimson clover) and early-sown winter oilseed rape may show temporary symptoms of growth inhibition, especially in areas of spray overlap, at the edges of treated strips and headlands.

In the following spring, after cereal harvest on fields where the product was applied, all crops can be grown without additional restrictions. If it is necessary to destroy the autumn-sprayed crop earlier, after ploughing in spring, spring wheat and maize can be grown. The period from the last application of the product on crops to the day when subsequent crops can be sown or planted is 90 days.

What are the recommendations for weed control with the spray liquid (herbicide) Bizon?

• Apply the product to well-cultivated soil (free of clods).
• Sow cereals at an even depth (3-4 cm), covering the seed thoroughly with soil.
• Do not harrow the soil after application.
• The product may cause temporary discoloration of the crop without affecting yield.
• Before applying the product in winter rye, consultation with the authorisation holder's representative regarding the sensitivity of the grown winter rye variety is recommended, or a trial application on part of the crop is advised.
• Recommended working pressure: 2-3 atmospheres.
• During operation, when the spray liquid is in the sprayer tank, ensure full venting of the tank.
• Do not apply the product: – to plants weakened or damaged by diseases, pests, frost, drought, – at air temperatures below 5°C or above 25°C, – after night frosts and before expected frosts, – in cereals with legume undersowing, – to plants covered with frost, – before expected rainfall, – during wind conditions that may cause spray drift.
• During application, avoid: – spray drift onto neighbouring crops and adjacent areas, – overlapping spray liquid on the edges of treated strips and headlands.

For more information about using the herbicide Bizon, visit the Agricultural Advisor website:

• Expand your knowledge about herbicides,
• Read about weeds,
• Learn more about winter cereals.

Warning! Plant protection products must be used safely. Before each use, read the information on the label and product information.

The buyer declares that they meet the conditions specified in Article 25(3)(5) of the Act of 8 March 2013 on plant protection products and have training in the use of plant protection products in the case of products for professional users. Before each use, read the information on the label and product information. Pay attention to detailed risk indications. Follow the safety rules contained on the label. Plant protection products may only be purchased by adults and persons who have completed training and have the qualifications required for persons acquiring plant protection products (Article 28 of the Act on plant protection products of 8 March 2013, as amended). Plant protection products must be used in a way that does not pose a risk to human health, animals or the environment. The buyer of plant protection products must be sober. By using this offer, you declare that you meet the above conditions.