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Used on more than 2 million hectares, Univoq provides that unique mode of action with lasting protection for your crop, laying the foundations for higher yields.
Many wheat crops were drilled earlier than normal last autumn, with some running 10 to 14 days ahead of recent seasons. That has brought forward canopy development and increased early disease risk, particularly from septoria.
The widespread emergence of the YR15 yellow rust population is also a greater consideration for spring 2026 than it was at the start of last year.
With fungicide plans being drawn up in the coming weeks, growers and agronomists should consider the evolving threat of SDHI resistance, and consider the wisdom of using two latest generation SDHI products in a programme this year.
Expert views
Mixing and matching should be the norm
Resistance to key active ingredients is no longer a theoretical issue. It is a real and growing threat to long-term disease control. SDHI and azole performance is under increasing pressure, and programmes built around a narrow range of chemistry are becoming harder to sustain.
Corteva Agriscience’s Univoq is part of the solution. With a unique site of action, there is no known cross resistance to the Inatreq active molecule.
Co-formulated with prothioconazole, Univoq delivers rapid uptake, strong rainfastness and long-lasting control of septoria and rusts. Many growers and agronomists would now struggle to justify a programme without it.
Growers who trust Univoq
Drivers for decisions in 2026
Univoq at 1.25 L/ha at T2 has been a consistently strong performer since launch, across wet and dry seasons. Increasingly, it is also being used with confidence at T1 as part of robust programmes where a clean start is the focus.
Drill date
Early-sown crops generally carry an increased septoria risk for farms.
Resistance
Mixing and alternating modes of action must be part of a pragmatic anti-resistance strategy.
Extending the life of SDHIs
Extending the life of SDHIs ADAS resistance modelling shows the inclusion of Univoq in a programme will extend the effective life of SDHI chemistry.
Value
With farm profitability under pressure, fungicides need to deliver robust protection at a competitive price.
This season brings earlier crops, higher pressure and tighter margins. Univoq helps growers meet all three challenges head-on. Talk to your agronomist this spring about where Univoq fits in your T1 and T2 strategy.
For 2026, Corteva’s best practice application advice will enable growers to benefit from the unique and outstanding performance of products containing Inatreq with confidence.
2026 NEWS AND UDPATES
- January 2026: Smart septoria control starts with smart stewardship.
Alternating modes of action and including a picolinamide like Inatreq in the programme is key. Using the greatest diversity of chemical modes of action helps slow resistance development and keeps wheat crops cleaner for longer. NIAB's Aoife O’Driscoll shared valuable guidance at the AHDB Resistance Workshop. Read the full insights in the latest Farmers Weekly article: Advice on fungicide choice to slow wheat disease resistance - Farmers Weekly.
High biomass. Rising disease pressure. Big decisions ahead for spring 2026.
Watch our expert videos to learn more.
Expert Insight: Fungicide Decision‑Making for 2026 | Nick Anderson, Velcourt
Expert Insight: Fungicide Decision‑Making for 2026 | Nick Anderson, Velcourt
- Expert insights
- Product range
- Septoria success stories
- About Inatreq™ active
- Packaging
- How it works
- Trials
What industry experts said in 2025
Corteva Agriscience sought the views of industry experts over the potential in the 2025 crop, market conditions, product efficacy and anti-resistance strategies.
In this video, we hear from six independent experts in relation to wheat yield potential and disease control.
- Professor Fiona Burnett, Arable Knowledge lead at SRUC, explains how a favourable window for drilling the 2025 cereal crop has led to many fields having good potential, but with some disease to deal with. Prof Burnett is also the current Chair of the UK’s Fungicide Resistance Action Group (FRAC), and she provides advice relating to using a range of modes of action in disease control programmes to form the backbone of a solid anti-resistance strategy.
- Jonathan Blake, Technical Director for Crop Protection at ADAS, explains that independent research on Corteva’s Univoq™ fungicide over the past decade has demonstrated consistent, robust activity on septoria.
- Tom McCabe, Lecturer at University College Dublin, has seen the Inatreq™ active molecule used in Questar™ and Univoq in Ireland and believes that the chemistry has a key place at either the T1 or T2 fungicide timing.
- Nick Anderson, Technical Director at Velcourt, says depressed wheat prices are likely to have an effect on how much growers invest in their fungicide programmes in 2025. But he believes that disease control is still of paramount importance and the desire to use the best chemistries available will drive product choice.
- Mark Fletcher, Head of Agronomy Services at NIAB, adds that he prefers to see Univoq at the T2 fungicide timing to have the most impact on disease control on the flag leaf, but that it can have a place at T1 too.
- Steven Kildea, Research Officer with TEAGASC, says that protecting all modes of action is vital and that, in Ireland, growers are advised to use all those available to reduce the risk of resistance building.
Cereal fungicide programmes - 2025 expert view
Corteva Agriscience has sought the views of industry experts over the potential in this year’s crop, market conditions, product efficacy and anti-resistance strategies.
Cereal fungicide programmes - 2025 expert view
Corteva Agriscience has sought the views of industry experts over the potential in this year’s crop, market conditions, product efficacy and anti-resistance strategies.
Early-season fungicide programme considerations
Early-season strategies for your fungicide programmes and modes of action to include at T1 and T2 - expert video.
Early-season fungicide programme considerations
Early-season strategies for your fungicide programmes and modes of action to include at T1 and T2 - expert video.
By integrating Univoq into your crop protection strategy, you can effectively manage cereal diseases such as septoria and optimise your yields.
Corteva would like to thank all the contributors featured in this video who volunteered their time and provided expert opinions to support growers’ decisions for their 2025 fungicide programmes.
Product range
Corteva cereal fungicides containing Inatreq™ active:
Univoq™
Peqtiga™
Questar™
Peacoq™
Aquino™
Apaveq™
Inconiq™
Poquet™
Septoria flag leaf sprays need to balance risk and reward
This season growers will be really looking at the cost of their programme and how much of a return they are likely to get from their investment, and Univoq should have a leading role to play. For many years in our trials it consistently shows excellent disease control which transfers into a yield uplift.
For example, in years like 2023 where a dry June saw disease stopped in its tracks following T2 applications, Univoq still added around 0.3t/ha over its currently available competitors. In wetter years where the pressure is on to keep flag leaves clean, this yield advantage can reach up to 0.7t/ha. Read the full article here.
This season growers will be really looking at the cost of their programme and how much of a return they are likely to get from their investment, and Univoq should have a leading role to play. For many years in our trials it consistently shows excellent disease control which transfers into a yield uplift.
For example, in years like 2023 where a dry June saw disease stopped in its tracks following T2 applications, Univoq still added around 0.3t/ha over its currently available competitors. In wetter years where the pressure is on to keep flag leaves clean, this yield advantage can reach up to 0.7t/ha. Read the full article here.
A fifth year of reliability for Northants grower
Northamptonshire-based Andrew Mahon has used Univoq for five seasons running. He grows 350ha of wheat and last year used Univoq across 300ha.
Andrew applied Univoq at a rate of 1.25l/ha on 18 May 2023. “We went on the early side, but there was a weather window. We were happy with Univoq’s performance, particularly from a rust and septoria perspective,” he adds. “It did what it said on the tin.”
Northamptonshire-based Andrew Mahon has used Univoq for five seasons running. He grows 350ha of wheat and last year used Univoq across 300ha.
Andrew applied Univoq at a rate of 1.25l/ha on 18 May 2023. “We went on the early side, but there was a weather window. We were happy with Univoq’s performance, particularly from a rust and septoria perspective,” he adds. “It did what it said on the tin.”
Septoria suppression in Suffolk for Oliver Pipe
“Using Univoq was a decision I made with my agronomist as to what would give us the most bang for our buck. It was one of the top-performing products and definitely the most competitively priced. When we applied it there wasn’t much disease to clear up, so the Univoq just quietly got on with its job and the crop stayed green. Yields were good – there are so many variables you don’t know if it’s down to any one thing in particular, but if you’ve kept it green you know it’s going to be alright.”
“Using Univoq was a decision I made with my agronomist as to what would give us the most bang for our buck. It was one of the top-performing products and definitely the most competitively priced. When we applied it there wasn’t much disease to clear up, so the Univoq just quietly got on with its job and the crop stayed green. Yields were good – there are so many variables you don’t know if it’s down to any one thing in particular, but if you’ve kept it green you know it’s going to be alright.”
Univoq keeps septoria at bay
A Cotswolds farmer who has had no septoria on his farm since applying Univoq is “100% sure” he will continue to use it in the future.
Jim Organ, who farms 650 acres near Bourton on the Water, has applied the fungicide, which contains Inatreq active, to his winter wheat crop for the past two years.
“My agronomist said it’s the best septoria cure on the market, so that’s why we went with it,” Jim says. Read the full article here.
A Cotswolds farmer who has had no septoria on his farm since applying Univoq is “100% sure” he will continue to use it in the future.
Jim Organ, who farms 650 acres near Bourton on the Water, has applied the fungicide, which contains Inatreq active, to his winter wheat crop for the past two years.
“My agronomist said it’s the best septoria cure on the market, so that’s why we went with it,” Jim says. Read the full article here.
Looking forward to using Univoq for the 3rd year running
Alex Sherwood grows up to 300 acres of wheat every year and applied Univoq on his agronomist’s advice.
“It performed very well,” Alex says. “I didn’t notice any disease when we applied it, so it was used more as a precaution than anything else.
“I would definitely use it again and would recommend it to other farmers,” Alex says. “I would also stick to the same rates and timings.” Read the article in full here.
Alex Sherwood grows up to 300 acres of wheat every year and applied Univoq on his agronomist’s advice.
“It performed very well,” Alex says. “I didn’t notice any disease when we applied it, so it was used more as a precaution than anything else.
“I would definitely use it again and would recommend it to other farmers,” Alex says. “I would also stick to the same rates and timings.” Read the article in full here.
"We have been using Univoq for the past three seasons. The disease control and the cost of the product fit well into our programme. We have been using it at T2 but in 2024 used some at T1 on certain varieties."
Adrian Joynt
Apley Home Farm, Shropshire
"I was involved in trials of Univoq before it launched and have been using the chemistry across the whole farm ever since. I know it's reliable on disease and my agronomist advises that it's the most cost-effective solution for septoria control."
Carl Clayton
Intake Farm, Tadcaster
North Yorkshire
The characteristics of Inatreq active
- It is the first picolinamide to be registered in the UK with a new class of chemistry for broad spectrum disease control in cereals.
- It offers robust control of Septoria, including isolates resistant to other sites of action.
- It is an excellent broad-spectrum active as it also offers control of yellow and brown rust.
- It is optimised with our patented i-Q4™ technology bringing flexibility in application without compromising disease control.
Corteva cereal fungicides containing Inatreq™ active registered for use in the UK:
Univoq™ | Peqtiga™ | Questar™ | Peacoq™ | Aquino™ | Apaveq™ | Inconiq™ | Poquet™
Resistance management
How long have we been reliant on the same modes of action and the impact this has on resistance? And, what can be done about the situation without adding cost? Find out more in this short video.
Award winning packaging
The unique design of the Univoq bottle improves production sustainability by minimising operator exposure, allowing easy product pouring, total emptying and rinsing, and is easier to recycle.
Read what farmers are saying on social media:
How Inatreq works to control Septoria
The lifecycle of Septoria is illustrated in detail, presenting the steps essential to infection, growth and reproduction. You’ll also gain an understanding of Inatreq™ active as a vital solution for managing Septoria.
Take a closer look at some of our trials
Fungicide trial in winter wheat looking at the performance of Univoq™ - Hawstead, Suffolk
Corteva Agriscience’s National Industry Relationship Manager and Area Manager for Bedfordshire, Buckinghamshire & Hertfordshire, Sarah Hurry, conducts a tour of a fungicide trial in winter wheat in Hawstead, Suffolk in 2021. In the tour we see tha
Fungicide trial in winter wheat looking at the performance of Univoq™ - Hawstead, Suffolk
Corteva Agriscience’s National Industry Relationship Manager and Area Manager for Bedfordshire, Buckinghamshire & Hertfordshire, Sarah Hurry, conducts a tour of a fungicide trial in winter wheat in Hawstead, Suffolk in 2021. In the tour we see tha
Univoq™ fungicide trial at Sawbridgeworth, Hertfordshire
In this video, Corteva Agriscience's Colin Bowers comments on trials comparing Univoq fungicide with other chemistry to demonstrate the lasting protection that Univoq provides when applied at the T2 timing. (Filmed 2019). Univoq is a new product co
Univoq™ fungicide trial at Sawbridgeworth, Hertfordshire
In this video, Corteva Agriscience's Colin Bowers comments on trials comparing Univoq fungicide with other chemistry to demonstrate the lasting protection that Univoq provides when applied at the T2 timing. (Filmed 2019). Univoq is a new product co
Univoq™ fungicide trial at Strumpshaw, Norfolk
Corteva Agriscience conducted a septoria trial on a crop of RGT Wolverine in Strumpshaw, Norfolk, in 2021. The variety has a septoria rating from the AHDB of 5.5 meaning it can be quite susceptible to disease. In this video, you can compare how diff
Univoq™ fungicide trial at Strumpshaw, Norfolk
Corteva Agriscience conducted a septoria trial on a crop of RGT Wolverine in Strumpshaw, Norfolk, in 2021. The variety has a septoria rating from the AHDB of 5.5 meaning it can be quite susceptible to disease. In this video, you can compare how diff
Univoq™ fungicide - Yellow Rust trial
In 2021, Corteva Agriscience carried out trials to look at the performance of the most popular wheat fungicides used to control yellow rust. This is a yellow rust trial which took place in Glinton in Cambridgeshire. The variety is Skyfall and you
Univoq™ fungicide - Yellow Rust trial
In 2021, Corteva Agriscience carried out trials to look at the performance of the most popular wheat fungicides used to control yellow rust. This is a yellow rust trial which took place in Glinton in Cambridgeshire. The variety is Skyfall and you
Univoq™ fungicide - Yellow Rust trial
In 2021, Corteva Agriscience carried out trials to look at the performance of the most popular wheat fungicides used to control yellow rust. This is a yellow rust trial which took place in Glinton in Cambridgeshire. The variety is Skyfall and you
Univoq™ fungicide - Yellow Rust trial
In 2021, Corteva Agriscience carried out trials to look at the performance of the most popular wheat fungicides used to control yellow rust. This is a yellow rust trial which took place in Glinton in Cambridgeshire. The variety is Skyfall and you
2025 video series
29 April Septoria & rust update with Sally Harris
It's late April following six weeks of very dry weather in the Midlands, and Corteva Agriscience's UK and Ireland Technical Manager, Sally Harris, has come to Warwickshire to assess the presence of septoria and rusts in winter wheat crops.
29 April Septoria & rust update with Sally Harris
It's late April following six weeks of very dry weather in the Midlands, and Corteva Agriscience's UK and Ireland Technical Manager, Sally Harris, has come to Warwickshire to assess the presence of septoria and rusts in winter wheat crops.
Planning a T2 fungicide programme with Craig Chisholm, Field Technical Manager at Corteva
Corteva Agriscience's Field Technical Manager for fungicides, Craig Chisholm, has returned to a field of Champion winter wheat in North Yorkshire to assess the disease pressure in the crop. In this video he finds that, despite a prolonged period of
Planning a T2 fungicide programme with Craig Chisholm, Field Technical Manager at Corteva
Corteva Agriscience's Field Technical Manager for fungicides, Craig Chisholm, has returned to a field of Champion winter wheat in North Yorkshire to assess the disease pressure in the crop. In this video he finds that, despite a prolonged period of
First fungicide sprays of the season
Join Craig Chisholm, Field Technical Manager for Cereal Fungicides at Corteva Agriscience, as he visits a North Yorkshire field to discuss the first fungicide sprays of the season.
First fungicide sprays of the season
Join Craig Chisholm, Field Technical Manager for Cereal Fungicides at Corteva Agriscience, as he visits a North Yorkshire field to discuss the first fungicide sprays of the season.
Effective fungicide strategies for winter wheat: Insights from Sally Harris
Join Sally Harris, Technical Manager for Corteva Agriscience, as she visits a September-drilled field of LG Beowulf in Shropshire to discuss the first fungicide sprays of the season and looking ahead to T2.
Effective fungicide strategies for winter wheat: Insights from Sally Harris
Join Sally Harris, Technical Manager for Corteva Agriscience, as she visits a September-drilled field of LG Beowulf in Shropshire to discuss the first fungicide sprays of the season and looking ahead to T2.
Disease levels in Suffolk with Tom Rouse
Corteva Area Manager, Tom Rouse, has been assessing disease levels in winter wheat crops of Mayflower and KWS Palladium in Suffolk, ahead of T1. Tom shares his opinion on an effective fungicide strategy based on a few different scenarios.
Disease levels in Suffolk with Tom Rouse
Corteva Area Manager, Tom Rouse, has been assessing disease levels in winter wheat crops of Mayflower and KWS Palladium in Suffolk, ahead of T1. Tom shares his opinion on an effective fungicide strategy based on a few different scenarios.
A brief intro to Univoq with Colin Bowers
After favourable drilling and establishment conditions last autumn, your mind will soon be turning to disease control in cereal crops.
A brief intro to Univoq with Colin Bowers
After favourable drilling and establishment conditions last autumn, your mind will soon be turning to disease control in cereal crops.
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.
Inatreq™ active contains fenpicoxamid.