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In the February edition
- Optimising weed control with Arylex and Broadway Ultra
- Strategic spring fungicide planning
- Get your spring cereals off to a great start with Ympact
- Kinsidro Grow+: A biostimulant that lessens the stresses in late drilled cereal crops coming out of the winter into spring
- Spring clean your oilseed rape with Korvetto
- Improve spring nitrogen management with Instinct
- Update your communications preferences, enter our monthly prize draw plus ways to earn BASIS & NRoSO points
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Optimising weed control with Arylex and Broadway Ultra
This spring is very different from 2024, with much more wheat in the ground and over 90% receiving a residual application in the autumn. Early drilled crops are looking good with few weeds, thanks to effective residual herbicides. Later drilled crops have suffered from water-logging, leading to open canopies and greater weed burden.
All crops will benefit from a post-emergence herbicide application to target emerging or overwintered weeds. Early control is crucial to prevent weeds from getting ahead once nitrogen is applied and the season warms up.
Arylex Benefits
Arylex™ is essential for broad-leaved weed control in winter and spring cereals. It performs well in cold, fluctuating temperatures, offers excellent crop safety, and has a wide application window up to GS45. Arylex is in Zypar® and Pixxaro®, effective against cleavers, cranesbill, chickweed, mayweed, fat-hen, fumitory, and charlock.
Recommendations
- In winter cereals, apply Arylex early or tank-mix with a graminicide.
- For later flushes of cleavers and black bindweed, mix with T1 or T2 fungicide.
- In spring cereals, tank-mix with PGRs, fungicides, or trace elements to reduce number of applications.
- Tank-mix with other herbicides for difficult weeds like larger Bur chervil.
Grass Weed Control
Broadway® Ultra, new from Corteva Agriscience, controls a full suite of grass weeds and difficult broad-leaved weeds. It contains pyroxsulam and mesosulfuron-methyl and can be used from 1st January at 100g/ha with an adjuvant. For comprehensive control, tank mix or sequence Broadway Ultra with Zypar.
Read the full article here.
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To celebrate the launch of Broadway Ultra, we're excited to be giving away 3 Ultra packs!
Click here to find out more and enter for your chance to win.
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Strategic spring fungicide planning: Breaking the cycle of resistance with Univoq
Now we are nearing the end of February, planning for spring fungicide programmes is well underway. All fungicide applications will be made to protect the crop for up to 3-4 weeks, although decisions are generally made on the weather conditions in the previous 3-4 weeks and the disease situation at that time.
Challenges in fungicide resistance
What is harder to take account of is how long we have been reliant on the same modes of action and the impact this has on resistance. Harder still, what can be done about the situation without adding cost? The first part is easy, for over a decade we have mostly relied on SDHI and triazole chemistry for the control of septoria and largely we still do. Is there resistance to SDHI and triazole chemistry? Yes. Will it get worse without action? Yes, especially as potent new forms of this chemistry are launched, increasing the selection pressure on existing resistance mechanisms.
Implementing effective strategies
Is there a solution? A panacea, no, but employing a break in the reliance on these chemistries by introducing an alternative mode of action chemistry that also has high efficacy on septoria will help.
This active is Inatreq™ and it can be found in Univoq™. Does choosing Univoq over a triazole + SDHI option compromise a fungicide programme? No, in fact it may well enhance it. Will choosing Univoq over an alternative SDHI + triazole product cost more? No, in fact it may be cheaper.
Univoq has excellent efficacy at both T1 and T2 leaving you to choose an alternate product at the other timing based on your belief as to what meets your needs. If you have not used it yet, be assured that over 2 million hectares have been treated with Inatreq products since launch and many growers and advisors would not use a programme without it now.
Click here to read this article written by Craig Chisholm, Corteva Field Technical Manager, on our website.
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As cereal growers begin to plan their fungicide programmes for 2025, here’s what six industry experts have to say about the potential in this year’s crop, market conditions, product efficacy, and anti-resistance strategies.
Click here to watch the video.
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Get your spring cereals off to a great start with Ympact
Ympact® is a novel biostimulant seed treatment which enhances seedling growth by optimising metabolic processes and abiotic stress tolerance. It contains Humic and Fulvic acid, along with bonded nutrients Zinc, Copper and Manganese.
Ympact is suitable for use on all spring cereals, including spring wheat, spring barley, spring triticale and spring oats, and is fully compatible with conventional seed dressings.
Why choose Ympact this spring?
- Speeds up plant emergence, improves early crop vigour and enables more uniform plant establishment.
- Increased biomass of the plant above and below ground.
- Increases root system development, improving access to soil water and nutrients.
- Increases metabolic activity resulting in abiotic stress tolerance.
- Water retention: humic substances in Ympact can retain approximately 7 times its volume in water.
- Reduction of chemical stress from conventional seed treatments allowing plants to develop undisturbed.
- Increases yield potential within crops by supporting photosynthetic processes critical for tiller, ear and grain development.
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Kinsidro Grow+: A biostimulant that lessens the stresses in late drilled cereal crops coming out of the winter into spring
Many cereal crops are suffering the ravages of a challenging autumn and winter. Late drilled crops especially, are significantly backwards coming into the spring, suffering from poor tillering and increased susceptibility to disease.
Lessening the stresses due to these challenging conditions in cereal crops coming out of winter and into spring is crucial.
Kinsidro® Grow+ is a consistently high-quality product that contains humic and a high concentration of fulvic acids, bound with essential macro and micro nutrients that are widely acknowledged to play a role in abiotic stress mitigation.
Kinsidro Grow+ stimulates metabolic and physiological processes during early plant growth. By activating enzymes that produce antioxidants, Kinsidro Grow+ is able to neutralise excess reactive oxygen species produced in winter-stressed plants that cause cell damage, death and reduced plant growth.
Amongst many other functions polyphenols are important molecules produced by plants and are responsible for disease resistance. Kinsidro Grow+ helps stimulate the production of phenolic compounds, improving disease and pest tolerance in plants. Thus, Kinsidro Grow+ can be an important tank-mix partner with a T0 or early T1 fungicide application to help optimise disease control.
Extracted from sustainably grown Nordic pine forests, Kinsidro Grow+ is highly concentrated with a conveniently low application rate of 0.15 kg/ha.
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Photos show that the agronomic response on a cereal crop following a February application is often visually evident in the field. The left image shows the crop 3 weeks after application, while the right image was taken 5 weeks after application.
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Kinsidro Grow+ is recommended for use in a wide range of crops including cereals, maize and sugar beet. For more application advice, visit our product page.
Explore the full range of Corteva biologicals here.
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Spring clean your oilseed rape with Korvetto
As spring emerges, after a relatively mild winter, broad-leaved weeds have continued to emerge and are ever present.
Poppies, mayweeds, cleavers and thistles can not only out-compete crops – left unchecked they can also cause harvest headaches and create a seed return to the soil which compounds the problem in future years. A solid autumn programme will have kept key problem weeds at bay, but early spring is an important time to monitor the emerging burden in the field.
Korvetto® has excellent activity on the weeds that can rob yield and cause issues at harvest. It contains Arylex™ active - the same active ingredient used in autumn herbicide Belkar® - in formulation with clopyralid. Timing of Korvetto application is from 1st March during stem elongation up to before flower buds are visible above the canopy (GS30-50) and it can be used from 8-25°C in humid or dry conditions. Avoid treating the crop when it is under stress, especially when frost is expected. There are no following crop restrictions in a normal crop rotation and farmers are free to use 1.0 l/ha of Korvetto if they have applied a post-emergence herbicide in the autumn such as Belkar or Astrokerb®.
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Improve spring nitrogen management with Instinct
Reducing losses of nitrogen to the environment is one approach to improve nitrogen use efficiency. Instinct®, containing Optinyte™ technology, reduces environmental loss by slowing the nitrification process.
A bit about Instinct:
- Instinct is a nitrification inhibitor.
- Instinct inhibits the enzymatic process in the Nitrosomonas bacteria for a period of 10-12 weeks.
As a result:
- More ammonium retained in the soil.
- Less nitrate lost to leaching.
- Less NOx gas emissions (de-nitrification losses).
- There is more nitrogen in the soil for longer.
Key application advice for Instinct in oilseed rape:
- Application by farm sprayer as close as possible to spring fertiliser application.
- Incorporation by precipitation (12 mm rainfall/heavy dews within 10 days of application).
- Instinct can be applied in rain (when applied alone)
- Check compatibility list for supported mixes.
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Winter OSR, spring application of Instinct
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Across 42 trials, there was an increase of 3.5% (0.15 t/ha).
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CPD points
Subscribing to Corteva Agriscience Arable Update gives eligibility for 2 CP BASIS points and/or 2 NRoSO points and/or 2 CP points for those who are part of the BASIS Environmental Advisors Register (EAR) annually.
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USE PLANT PROTECTION PRODUCTS SAFELY. Always read the label and product information before use. For further information including warning phrases and symbols refer to label. Corteva Agriscience UK Limited, Unit H4, Building H, Melbourn Science Park, Cambridge Road, Melbourn, Cambridgeshire, SG8 6HB. Tel: 01462 457272. ®, ™ Trademarks of Corteva Agriscience and its affiliated companies. © 2025 Corteva. Arylex™ active contains halauxifen-methyl. Zypar® contains florasulam and halauxifen-methyl (Arylex™ active). Pixxaro® EC contains fluroxypyr and halauxifen-methyl (Arylex™ active). Broadway® Ultra contains pyroxsulam and mesosulfuron-methyl. Inatreq™ active contains fenpicoxamid. Univoq™ contains fenpicoxamid and prothioconazole. Ympact contains Fulvic Acid, Humic Acid, trace elements including Copper (0.45%), Manganese (0.74%), Zinc (1.1%), Boron, Cobolt, Sodium. Kinsidro® Grow+ contains Fulvic Acid, Humic Acid, Potassium Oxide (10%) Sodium Oxide (3.75%) Sulfur Trioxide (6.25%) Boron (0.04%) Cobalt (0.04%) Copper (0.04%) Manganese (0.04%) Molybdenum (0.005%) Zinc (0.05%). Instinct® contains nitrapyrin. Korvetto® contains clopyralid and halauxifen-methyl (Arylex™ active). Belkar® contains halauxifen-methyl (Arylex™ active) and picloram. Astrokerb® contains aminopyralid and propyzamide.
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