Arnold (diflufenican, flufenacet) - herbicide

Arnold - a herbicide powered by two active substances

What are the benefits of using the plant protection product Arnold for weed control?

• Effectively controls unwanted weeds,
• Contains two active substances: diflufenican and flufenacet, which complement each other, making Arnold even more effective,
• Has a fast action, so you will quickly get rid of the problem,
• Does not limit the choice of succeeding crops,
• Acts both soil-applied and foliar - broad spectrum of activity.

The product Arnold is a plant protection product manufactured by Sharda from the herbicide group. It is available in the form of a concentrated suspension for dilution with water (SC).

It is a selective product with systemic action.

It is intended for soil and foliar application in weed control.

The product is intended for use with self-propelled or tractor-mounted field sprayers.

What is the content of active substances in the herbicide Trinity 590 SC?

• Diflufenican - (compound from the phenoxynicotinanilide group) - 200 g/l (16.20%),
• Flufenacet (compound from the oxyacetamide group) - 400 g/l (32.41%).

How does the herbicide Arnold work?

As you already know, the weed control product Arnold contains two active substances: chlorotoluron, diflufenican and pendimethalin.

Each of these substances has a different mode of action, which makes these substances complement each other. Thanks to this, regardless of which weed species attack your plants - they stand no chance against this duo!

Diflufenican is a contact herbicide (with limited translocation within the plant), classified as an inhibitor of carotenoid biosynthesis in weed cells. The lack of these structures causes bleaching of leaf tissues and cell breakdown, which is especially visible in new tissues. Diflufenican remains on the soil surface for a long time after application, forming a thin layer that acts contactly on emerging young, actively growing
weeds. It provides protection for up to 8 weeks after application.

Flufenacet is a systemic herbicide, classified as an inhibitor of long-chain fatty acid synthesis. It is mainly absorbed by the roots and the part below the cotyledons of germinating weeds.

Diflufenican and flufenacet remain active in the soil for many weeks after treatment, which causes maintenance of high weed control efficacy also in the later period.

Optimal soil moisture favours the high efficacy of the product. The best weed control effect is achieved by applying the product in the early developmental stages of weeds, that is during germination or shortly after emergence, at the seedling stage.

Which weeds does the plant protection product Arnold control?

Before cereal emergence:

• Sensitive weeds: common chickweed, blackgrass, cleavers, barren brome.

When the product is applied after cereal emergence:

• Sensitive weeds: small cranesbill, wormwood, field pansy, common chickweed, purple dead-nettle, corn poppy, scentless mayweed, sea mayweed, blackgrass, ground ivy, Persian speedwell, cleavers, scentless chamomile, common chamomile, wild radish, shepherd's purse, field pennycress, barren brome.
• Moderately sensitive weeds: cornflower, volunteer oilseed rape, volunteer spring cereals.

How to apply the herbicide Arnold?

Detailed information regarding dosage and application of Arnold can be found in the "Dosage" section and in the plant protection product label attached in the downloadable files.

In which crops can the herbicide Arnold be used?

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

What is the pre-harvest interval when using the herbicide Arnold in winter cereals?

The pre-harvest interval, i.e. the period from the last application to the day of crop harvest, does not apply to the product Arnold.

Can Arnold be used for weed control without concern for succeeding crops?

The product does not pose a threat to succeeding crops.

If it is necessary to destroy the treated plantation earlier due to frost damage, pests or diseases, cereals protected by the product may be sown on that field provided that no plant protection product containing diflufenican is applied in the same season, and if the plantation was ploughed in spring, do not cultivate beet, peas (on light soils), oilseed rape, oats, onion vegetables and cabbage plants. Other cereals can be grown after ploughing to a depth of 20 cm.

What are the recommendations when using the spray liquid prepared with Arnold?

• Sow cereals at a uniform depth (3-4 cm) covering the seed thoroughly with soil.
• On humus soils and black earths, the product may show reduced weed control efficacy.
• Resistance management strategy. To minimise the risk of weed resistance development to herbicides, follow Good Agricultural Practice:
  – strictly follow the instructions on the plant protection product label – use the product at the recommended dose and timing to ensure optimal weed control,
  – adjust the choice of herbicide and decision to perform treatment according to the current (or potential) weed infestation, considering dominant species and damage thresholds,
  – rotate herbicides (active substances) with different modes of action,
  – use mixtures of herbicides (active substances) with different modes of action,
  – use herbicides acting on several weed life processes (with different modes of action) in rotation and/or mixture,
  – apply a herbicide with a given mode of action only once per growing season of the crop,
  – adapt cultivation practices to field conditions, especially to weed type and intensity,
  – use various weed control methods, including crop rotation, etc.,
  – use certified seed material,
  – clean agricultural machinery to prevent transfer of weed propagules to other sites,
  – inform the authorisation holder about unsatisfactory weed control,
  – for detailed information, contact an advisor, the authorisation holder or their representative
• Do not apply the product:
  – to plants weakened or damaged by diseases, pests, frost or drought,
  – before expected frosts and in case of large daily temperature fluctuations,
  – in cereals with legume undersowing.
• During application, avoid:
  – spray drift onto neighbouring crop plantations,
  – overlapping spray liquid on treatment strip edges and headlands.

More information can be found in the attached label in the downloadable files.

We invite you to learn more about the use of the plant protection product Arnold on the Agricultural Advisor website:

• Expand your knowledge about herbicides,
• Learn more about weeds.
• Read agricultural bulletins.

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 paragraph 3 point 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 in the label. Plant protection products may only be purchased by adults and persons who have completed training and have the qualifications required for persons purchasing 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 threat 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.