The head of integrated crop management, David Howard, explained that although the lack of rainfall is slowing down the usual wet weather diseases like rynchosporium and net blotch, it has exacerbated crop stress, which is letting issues like ramularia, mildew and rust get a foothold in crops.   

“I suspect ramularia may appear in crops shortly due to the stress brought about by rapid growth, dry weather, and diurnal temperature fluctuations.”  

This risk must be considered when planning imminent T2 fungicide applications, the expert advises. 

“Traditionally, the T2 fungicide application in barley has been regarded as less important than the T1 spray, but given the level of stress in crops, it could be key in managing ramularia risk this season. 

“The ramularia pathogen appears to be evolving rapidly, with increased resistance to SDHIs, azoles, and strobilurins seen last year. The combination of these two factors suggests it is essential to ensure ramularia is adequately covered at T2,” Mr Howard continued. 

Act early 

Traditionally, growth stage 45-49 has been the key timing for reducing ramularia in barley, with many T2s often applied at the ‘paintbrush stage’ as awns begin to emerge (GS 49). 

However, Mr Howard said that it may be necessary to treat crops slightly earlier this year, from flag leaf up to booting (GS 39-45), in order to manage the increased disease risk. This is particularly true if plant growth regulation is also required. 

“We already have reports of flag leaves visible in some areas, which places even greater importance on the GS 39-45 timing, as it will be key for both growth regulation and disease management to mitigate against the risks of big canopies, particularly where a T0 was not applied due to weather constraints,” he added. 

As with wheat, the gap between T1 and T2 should not exceed four weeks, he noted. 

T2 options 

The most effective active ingredient against ramularia is pydiflumetofen, which, when partnered with prothioconazole, provides strong protection against all of the main disease threats, Mr Howard said. 

Fluxapyroxad + Mefentrifluconazole also offers good activity on ramularia, rhynchosporium, brown rust and net blotch, although he reminds growers that timing and total dose restrictions apply to the use of fluxapyroxad in crops for malting, so care is needed in such situations. 

Including folpet with the T2 could be a useful addition, as trials suggest the multisite can improve ramularia protection, even when partnered with the strongest chemistry. 

“Folpet now has a label claim for the reduction of ramularia and is active on resistant strains. 

“T2 applications are even more important on hybrid varieties due to the large flag leaf and brown rust weakness, and where risk of ramularia is high, particularly where folpet has not already been included in the program,” the expert concluded. 

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Corteva Agriscience says the stabiliser has demonstrated reductions in nitrogen leaching of approximately 50%, and denitrification through greenhouse gases of around 45%.

This means the nitrogen in slurries, digestate, or other fertilisers, is kept where it is needed as maize crops develop. 

“Maize establishment season is upon us and huge amounts of slurry and digestate will be applied to crops to get them off to the best possible start,” says Clare Stapley, category marketing manager for Corteva. 

“For efficiency, agronomic, and environmental reasons, it’s logical to keep as much of the nitrogen in those inputs where they need to be. 

“Stabilisers increase and extend nitrogen availability. Across our trials programme the average yield response is over 10%.”

Improving use efficiency

Instinct utilises Corteva’s unique Optinyte technology, keeping more nitrogen in the soil for longer periods, significantly improving use efficiency. The product works by slowing down the conversion of ammonium to nitrate, preventing nitrogen loss through leaching and denitrification, and ensuring more remains in the rooting zone.

Application is flexible – Instinct can be mixed into slurry or digestate before field application, or sprayed on shortly after. It’s also compatible with any fertiliser containing ammonia, such as sludge, urea, UAN, and ammonium nitrate.

“The most important element of use is ensuring good soil contact, so it should be applied before cultivation, or when rain is due to ensure good incorporation,” adds Clare.

For dairy farms specifically, Instinct offers significant advantages, particularly for maize crops which often face nitrogen limitations due to current regulations.

“Forage maize has an NMAX limit of 150kg N/ha so it is often undersupplied with nitrogen,” says Ryan Came-Johnson, area manager for Corteva in the South of England.

“Modern varieties are typically higher yielding and therefore may have higher nitrogen requirements. If they don’t get adequate nutrition, they will never reach their full yield potential.”

Timing crucial

The timing of nitrogen availability is another crucial factor that Instinct addresses for maize growers.
“Because of the way maize is grown it generally receives all of its fertiliser and nitrogen requirements at drilling,” Ryan explains. 

“However, maize actually has a large nitrogen requirement later on in its growth stages. By applying Instinct and keeping the nitrogen in its most available form for longer you’re making it more available at that later time when the maize needs it the most.”

Economic benefits

The economic case for using Instinct is also compelling. “By applying Instinct, which is a fraction of the cost of nitrogen, farmers could potentially apply less artificial nitrogen because they’re getting more from what they are applying and getting increased nitrogen availability from their manure applications. By making it more available for longer, you lose less so you don’t need to apply as much,” explains Ryan.

“You don’t need to necessarily change what you put on, Instinct just makes everything work better and more economically.”

As well as maize, the stabiliser can be used on cereals, oilseed rape, sugar beet, potatoes, and grass. 

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Hutchinsons head of integrated crop management, David Howard, said that overall disease pressure may be generally lower after the driest March in 60 years and a dry start to April, but short-term stress and nutrient deficiencies caused by the lack of rain could increase the risks from some diseases.

The expert added: “Crops remain variable across the UK, largely based on the state of soils at drilling and the weather received over winter. Prolonged cool nights and dry weather have extended early growth stages, but with daytime temperatures spiking into the high teens, some barley crops are now moving rapidly towards T1.”

Mr Howard has also warned that plant defences may be reduced under current conditions, especially if weather remains dry, so growers must carefully assess disease risks in individual crops when determining fungicide choices.

Variable disease picture

Early reports from the Southwest suggest that stressful conditions could mean ramularia symptoms are seen earlier this year, especially on light soils that are rapidly drying out or in barley crops with significant nutrient or pest stress.

“Mildew is also widespread, especially in crops stressed by poor weather, high nitrogen levels, or dry weather,” Mr Howard said.

On a more positive note, net blotch and rhynchosporium pressure are generally lower than previous wet years, and cooler temperatures have subdued brown rust up until now, although he says there are some early reports of the disease appearing in more susceptible hybrid varieties.

Targeted T1

Growth stages 30-31 are critical in winter barley for both effective disease control and yield optimisation, Mr Howard continued.

“Barley grows rapidly during this time, adding biomass quickly and relying heavily on lower leaves, which contribute significantly to green area index. Barley’s lower leaves are larger and play a more prominent role in photosynthesis alongside stems and ears, unlike wheat, where upper leaves dominate yield contribution.

“Retention of tillers is also essential in barley to maintain yield potential; therefore, getting disease control right and reducing plant stress at this early timing is key.”

Combining SDHI + azole products can provide robust activity against multiple diseases, but as always, he urges growers to mix modes of action and alternate actives within the programme to mitigate resistance risks.

Net blotch strains resistant to SDHIs and strobilurins are becoming more common, for example, although there is differential control between strobilurins, with pyraclostrobin being less affected than others, he noted.

For ramularia, the most active product is now pydiflumetofen, so should be considered where significant disease is already confirmed, he advises. If not, the product is best kept for T2, where ramularia is more commonly seen. Another option in high-pressure situations is mefentrifluconazole, and he also suggests adding folpet, or a biostimulant such as Scyon, for consistent protection.

Where mildew needs controlling, cyflufenamid is effective, but he reminds growers to avoid consecutive sprays of cyflufenamid to prevent resistance. “For moderate cases, consider prothioconazole-based products.”

Benzovindiflupyr, tebuconazole and strobilurins such as pyraclostrobin, are all options for brown rust, but tailor choices to specific situations and the need for curative control and/or lasting protection, he says.

Mr Howard also noted that if T0 applications were recently applied, growers have the flexibility to adapt the T1 timing to GS 31/32, but if no T0 was applied, the earlier GS 30/31 timing will be essential and higher dose rates may be needed to improve curativity where required.

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Mr Keyte manages Ragley Home Farms in Alcester, Warwickshire. Of the farm’s 1,600 arable hectares, half is in production while the remainder is in the mid-tier stewardship scheme or under SFI.  

“We’ve 15 soil types here – everything from sand to blue clay,” explains Mr Keyte. “Even though our average field size is just 6-6.5ha, we can go from one extreme to another in a single field. It makes farming complicated and is why there are so many crops in the rotation.” 

Ragley Home Farms produces winter oilseed rape, winter barley, borage, spring barley, oats and winter wheat. Some land is rented out for vegetable production and the farm is home to 1,000 sheep.  

Autumn drilling falls into three windows 

“Due to black-grass we used to hold back drilling until mid-October. This year we started sowing winter wheat on 16^th September but had to put the drill back in the shed on 21^st September when it started raining,” says Mr Keyte.  

Other than a small window around 5^th October when some oats and wheat were sown, the drill wasn’t in the field again until 6^th November when Mr Keyte completed sowing 325ha in ten days.   

According to the local BASF Agronomy Manager, Colin Mountford-Smith, Mr Keyte’s situation is typical of the region.   

“Most of the growers in central & west midlands got their planned acreage drilled this past autumn,” he says. “The West of the region had a good window early in the season, and again from the middle to the end of October. This was when most of the acreage went in the ground. Andrew’s further east, and was unlucky to have this window short cut. 

“Unfortunately, at the back end of the season, emerging crops faced a lot of rainfall, leading to some re-drilling or backward or thinner crops.”

Drilling date, weather and soil type lead to variable establishment  

While drilling date and weather have been important factors, soil type has often determined how well crops have established at Ragley Home Farms.  

“In the main, the September drilled winter wheat got away well. Some of the Extase even got a bit ahead of itself and we might hold back fertiliser to try and let it catch up.  We have also got wheat from this early drilling slot that went into lighter land that suffered with the heavy rain – the soil capped and the crop got wet before it had a chance to establish.  It hasn’t recovered.  

“The October drilled crops generally look okay, but the November-drilled wheat is also variable.”   

Fungicide programmes to kick off with broad-spectrum products  

As well as working out which fields to redrill this spring, Mr Keyte is thinking about his fungicide programme for the season. 

“We’ve not sat down and drawn up the season’s programmes yet but as we spotted brown rust coming through in the Crusoe when crop walking on the 14^th February, we’ll be applying a fairly strong T0 on some of the crops. Last year we’d a tebuconazole mix but I think there’s more disease around this year and some of the crops went into the ground earlier.” 

Mr Mountford-Smith agrees, adding: “With the relatively mild autumn and winter, there’s potential for high pressure from all the major diseases this year and anything that was drilled early will be more vulnerable. These crops, in particular, would benefit from the broad-spectrum control Revystar XE offers early in fungicide programmes.  

“Across 31 BASF and independent trials we’ve seen it consistently outperform Ascra Xpro at T1 giving, on average, a 0.21t/ha uplift in yield¹. This season Revysol-based products will offer fantastic value on farm and definitely feature in the programme.“ 

“Revysol can also help to protect other chemistry within the programme which have a higher resistance risk.  The newer SDHIs and Qiis for instance, when used at high rates can apply a higher selection pressure and should be protected.”

Reducing the risk of resistance developing is a consideration for Mr Keyte when putting together his fungicide programmes. 

“We follow the advice from the manufacturers, use a variety of modes of action, pay attention to rates and try not to use the same active ingredients too often. We don’t want to be losing any fungicides through misuse,” he says. 

With such a wide variety of crops to manage this spring, Mr Keyte is likely to have a variety of programmes depending on yield potential and disease pressure. 

“Thinner crops will have ‘as little as possible, but as much as necessary’ but those with potential will have whatever they need to keep them clean. With so much of the winter wheat not likely to yield what it should, we need to get the most out of those that will. 

“For now, however, it’s about fertiliser applications and trying to move some of those more backwards crops forward.” 

_{¹ Based on rates of 0.75-litres/ha of Revystar XE and 1.0l/ha AscraXpro}

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Mr Gordon explained that net blotch has rapidly become one of the hardest diseases to control in spring barley, because crops can easily become infected either via seedborne or trashborne sources of inoculum.

“The added complication of disease resistance – which has reduced the efficacy of several fungicide active ingredients – means it’s no longer possible to cure infections once they have taken hold. Prevention is therefore crucial to ensure crops remain as clean as possible for as long as possible,” the expert added.

Among the main methods for mitigating net blotch pressure is to grow a resistant variety or apply an appropriate seed treatment.

Mr Gordon added: “Unfortunately, some spring seed, especially that which has been farm-saved, won’t have been treated and, if already infected or not naturally resistant, could prove to be a ticking time bomb later in the season.

“And, with seed treatments unlikely to offer full control, monitoring all crops during their early growth stages will be even more important this year.”

Very high levels of net blotch confirmed

The ProCam agronomist’s advice is therefore to apply an early-season fungicide treatment to provide crops with an extra layer of disease protection before infections explode.

“In a ‘normal’ year, or in a low disease pressure scenario, it might be feasible to wait until the traditional T1 timing to apply a first fungicide treatment.

“Unfortunately, that approach won’t cut the mustard this year, as we’re already hearing reports that a significant volume of seed has been confirmed to have very high levels of net blotch. Where untreated seed has been drilled, or where drilling was brought forward to make the most of the recent dry conditions, the risk will be even greater.

“The advice this year is therefore to bring crop protection plans forward by applying a suitable fungicide treatment as soon as possible,” Mr Gordon added.

He recommends that growers and agronomists should be on the lookout for symptoms of net blotch (brown stripes of infection spreading from the base of leaves in seedlings) ahead of the first tiller stage (GS21).

“Most growers will already be planning to apply weed control and trace elements at this timing, so it makes sense to use the opportunity to apply a fungicide to knock back any infection that has travelled up from the seed or which has been transmitted into the emerging plant from infected trash,” the expert continued.

Useful options

In terms of which active ingredients to apply at this early timing, Mr Gordon explains that growers and agronomists need to choose carefully to ensure the selected treatment is effective.

“A rapidly developing resistance issue has made several azoles and SDHI fungicides less effective than they used to be. It is therefore important to protect key actives such as prothioconazole, adepydin and fluopyram by using them in conjunction with another mode of action.

“The best option is to include a strobilurin (QoI), but even some active ingredients in this fungicide group – such as fluoxastrobin and azoxystrobin – have been impacted by resistant isolates.

“Thankfully, pyraclostrobin and trifloxystrobin have so far remained unaffected by any disease mutations, with products such as Mobius (175 g/L prothioconazole and 150 g/L trifloxystrobin) and Comet 200 (200 g/L pyraclostrobin) useful options to deliver effective QoI’s at this early GS21 timing,” he concluded.

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Having been asked by farmers and dealers alike, the company began considering the design, specification, and the needs of small to medium arable and vegetable growers requiring a quality build and a high specification sprayer with robustly constructed booms.

The XRF range of hydraulic cross rear fold booms from 12 to 15 metres slots in between Landquip’s amenity sprayers with their six to 10 metre booms and the arable mounted machine range with aluminium booms from 18 to 30 metres.

Ideally suited to tractors of 80-150 hp, the XRF machines are compact close-coupled offering good weight distribution with tank shapes that result in a low centre of gravity. A 1000 litre, 12 metre XRF 1012 weighs 850 kg.

The high-grade polyethylene tanks available in 800, 1000 or 1200 litres have ultra-smooth, easy-to-clean inner and outer surfaces with efficient sump for exceptional draining to use every last drop, aiding washing out and minimising water use.

What to expect

Constructed of the same polyethylene material, the 65-litre system washtank, 20-litre hand wash, and 30-litre swing-out low-level chemical induction bowl complete with can wash, hopper wash, and agitation jet, all come fitted as standard equipment, Landquip confirmed.

The close-coupled heavy-duty cross rear fold boom – requiring one double-acting tractor spool valve – folds to a narrow 2.6 metres, adding to the machine’s compact size and ease of transportation in and out of narrow gateways.

Equipped with stainless spray lines, mono- or tri-jet nozzle bodies can be specified and fitted with ISO colour-coded long-life spray tips in moulded acetal resin, an extremely hard-wearing polymer.

Both the left- and right-hand booms have independent spring suspension, two-directional break-back tips and adjustable protection skid.

The manufacturer added that a high lift height mast enables boom spray heights from 0.3 to 2.1 metres using a single-acting tractor spool valve.

As with all Landquip sprayers, the new XRF-mounted machines are built to customers’ exact requirements with the following choices of three, five, or seven electric switching sections, GPS rate control, GPS mapping and auto section control, and pump sizes to meet all application volumes of chemicals and liquid fertiliser.

Retail prices from £12,750 + VAT. For further details email Landquip at sales@landquip.co.uk

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Rules set out by the HSE’s Chemicals Regulations Division (CRD) define a winter cereal as one that has been sown on or before 31st January, and any cereal drilled after that—even if it is a ‘winter’ variety—is legally classed as a spring cereal and must be treated as such in the eyes of CRD.

Equally, a ‘spring’ variety sown before the end of January will technically be considered as a winter variety from a regulatory viewpoint, explained Hutchinsons’ technical support manager, Duncan Connabeer. 

Important implications of sowing date 

“Although sowing date doesn’t change the genetic traits of a winter or spring variety, these drilling date definitions do have important implications for the herbicides, fungicides, insecticides and growth regulators that can be legally applied on those crops. 

“When winter cereals are sown after the end of January, they can only be treated with products approved in spring cereals,” Mr Connabeer added. 

Likewise, any product authorised for use in winter cereals can legally be used on spring cereals when they are sown before the end of January, however, the expert warns that such use may not necessarily be supported by product manufacturers or agronomists. 

Indeed, there can be an increased risk of crop damage from using some chemistry on winter cereals drilled in the spring, or spring cereals sown in the autumn, therefore growers must check product labels carefully and discuss the most suitable options with their agronomist, the expert concluded. 

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The company said that Manhattan is a “unique combination of active ingredients” offering a new solution for use in winter wheat, winter rye, winter triticale and winter spelt.  
  
Manhattan represents a significant evolution from Broadway Star – the herbicide currently favoured by many tillage farmers – as it now contains Arylex in combination with pyroxsulam and florasulam, taking already proven and powerful chemistry to new highs, Corteva team added. 

‘A great new tool’

Liz Glynn, national technical manager for Corteva Agriscience, explained: “This is a great new tool to allow growers to take out yield-robbing weeds early in one pass.  
  
“The addition of Arylex complements Broadway Star but with improved control of fumitory and ALS-resistant poppy and chickweed.”  
  
Arylex is a unique molecule in the arylpicolinate family of auxin mimics, which gives consistent control of challenging weed species within difficult conditions that do not favour other chemistries. One of its key characteristics is a rapid speed of kill and fast degradation time in soil.  
  
Including it in the formulation creates an even broader spectrum of target weeds, which includes bromes, wild and tame oats, ryegrass (from seed), as well as poppy, speedwells, chickweed, mayweed, cleavers, fumitory, and a number of umbellifer, polygonum and brassica species. 
  
Chris Maughan, mechnical manager for Whelan Crop Protection, added: “Manhattan is well suited to Irish farms because it adds Arylex to the Broadway Star formulation, bringing in control of additional weeds such as fumitory and resistant chickweed and poppy populations.  
  
“When it comes to wild oats, we are also seeing a lot of resistance to the ACCase inhibitor herbicides across Ireland but there is no known resistance to the actives in Manhattan, so it’s an ideal product to use to if you have resistant wild oats.” 
  
Ms Glynn concluded: “Utilising Manhattan as a different mode of action will not only control resistant biotypes but also allows for a greater rotation of chemistry and reduction of selection pressure on fops, dims and dens, allowing for use in other crops where Manhattan cannot be used.”   
  
Manhattan is formulated as a wettable granule in a five-hectare pack and should be applied at a rate of 100g/ha with a suitable adjuvant.  
  
The company added that there are no following crop restrictions, and the wide application window spans autumn and spring from growth stage 12 through to 32. There is a broad tank mix list, and the product is extremely safe on crops.   
  
Manhattan is easy to use, flexible, and delivers one of the widest spectrums of both grass and broad-leaved weed control, Corteva confirmed. 
  
For more information, visit Corteva Agriscience website.

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Ahead of the busy spring spraying season kicking off, Hutchinsons’ agronomist George Baxter highlights six ways to make sure your sprayer is properly prepared. 

Visual inspection 

Mr Baxter said that farmers should start by getting the sprayer out of the shed and walking around it to check all the components individually for cleanliness and condition.  

“The whole machine has to be fit for purpose, so look at everything from the hitching and steering points on a trailed or mounted sprayer to the tank, filters, hoses, and electrics. Perishable rubber components, such as drip control valves, and water ingress into electrical solenoid valves can be a particular problems areas to watch.” 

The expert added that farmers should also check if PTO guards, beacons, work lights and tyres are in good condition and free from defects.  

“Open out the boom and check the general condition of joints, hydraulic rams, pivots, etc, and boom movement, which should move and reset itself to the centre,” he advised. 

“Sprayers must be tested annually for farm assurance, so check that your sprayer has a valid, in-date NSTS certificate, and book a test where appropriate.” 

Check tyre pressures 

Sprayer setup is not just about the spraying components. Other factors, such as running the correct tyre pressures can also help improve boom stability in the field and minimise potential compaction of tramlines, said Mr Baxter. 

“Although many sprayers have self-levelling systems, these can be put under greater strain if tyre pressures are uneven. Don’t forget to also check the tractor tyre pressures if you are using a mounted sprayer. 

“The optimum pressure depends on several factors, such as tyre type and size, machine weight, and the amount of field and roadwork to be done, so a compromise may be needed. Refer to tyre manufacturer recommendations or speak to a representative about optimum pressures,” the expert explained. 

Ensure the tank is empty and clean 

Ideally, the sprayer will have been put away clean at the end of the season, but Mr Baxter said there is no harm in washing it out again with clean water before starting the spring programme. Doing so also provides an opportunity to check for leaks at the same time. 

Although water will do the job, some product labels require a specific tank cleaner to be used, and even if not, cleaners can be worth using occasionally to ensure everything is given a good clean, particularly if you are concerned about potential sulfonylurea residues on sensitive crops, he continued.  

“Remember, all washings must be disposed of correctly, which can be quite complex in the absence of a designated washdown area and biobed system, so seek advice or speak to your agronomist if you are in any doubt.” 

Look for leaks 

Mr Baxter said that it is always worth operating the sprayer with clean water to check for leaks and ensure the on-off mechanism and anti-drip valves are working correctly. 

He recommends running the sprayer at a minimum of 5 bar to check for leaks. “If there are no leaks, pressurise the sprayer to operating pressure to check that the pressure reading (gauge or electronic) is operational and correct,” he said. 

Test the nozzles 

It is important to inspect and jug test the nozzles for damage and ensure that they are within tolerance for desired application rates. Cross-reference the flow rate against manufacturers data, and also check that nozzles are correctly aligned, Mr Baxter advised. 

“Take this opportunity to evaluate whether current nozzles are delivering the coverage you need to get the most from products. Recent years have seen an industry trend towards lower water volumes to improve work rates, but there is a risk this could be compromising coverage and efficacy in some situations.  

“Again, it’s a complex area, so discuss the options for nozzle choice and water volume with your agronomist,” he said. 

Check PPE and first aid 

Finally, Mr Baxter highlighted the importance of making sure that the correct PPE and a complete first aid kit (including eyewash) is available to the sprayer operator. At the very least, PPE should include a face mask, gloves and spraying overalls. 

“Also consider things like a spill kit, fire extinguisher, signage, and an action plan/emergency contact numbers in the event of an accident.  

“Taking a bit of time to make sure everything is in good working order before the season gets going can help to reduce the risks of downtime once things get busy. With relatively narrow windows to apply products at the optimum stage, anything we can do to avoid lost time and keep sprayers working properly has to be worthwhile,” he concluded. 

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Maxentis is a versatile, two-in-one fungicide designed to fit seamlessly into farmers’ spray programmes.  

A spokesperson for Adama said: “Whether you’re looking to keep rust in check at T0 or a flexible partner product to use in conjunction with other fungicides across a range of spray timings, Maxentis delivers reliable, cost-effective protection thanks to its unique co-formulation of two trusted actives: azoxystrobin and prothioconazole.”  

Two trusted actives, one convenient solution  

The company explained that Maxentis takes the hassle out of disease management by combining 200 g/l azoxystrobin with 150 g/l prothioconazole in an easy-to-use formulation that offers broad-spectrum disease control.  

It is designed to work across multiple crops at a range of rates and timings, with its ability to be used with a wide array of partner products making disease control simpler. 

Why Maxentis?  

• A smart choice for T0: ideal for early rust control to give crops a clean start  

• Reliable, broad-spectrum protection: controls septoria, fusarium, rusts, net blotch and powdery mildew in cereals plus alternaria and sclerotinia in oilseed rape.  

• Built-in flexibility: multiple crops, application timings and excellent tank-mix compatibility.  

• Practical and cost-effective: developed with growers in mind for ease of use and efficiency.  

Flexible timing  

Wheat and triticale  

• Foliar diseases: apply from BBCH30 (stem elongation) to BBCH69 (end of flowering).  

Wheat  

• Ear diseases: apply after ear emergence until the end of flowering (BBCH59-69).  

Barley and rye  

• Foliar diseases: apply from BBCH30 (stem elongation) through to and including BBCH65 (mid flowering).  

Oilseed rape  

• Sclerotinia: apply as a protectant spray at flowering, with the optimum timing for application being at the mid-flowering stage (GS60-65).  

• Alternaria: apply as a protectant spray from full flowering (BBCH65) to and including 30% of pods at their final size (BBCH73).  

Oats  

• Maxentis is also registered for crown rust control in winter and spring oats.  

Developed with input from agronomists, growers, and spray operators, Maxentis is formulated for easy handling, reliable performance, and smooth application.  

It is a straightforward, no-fuss solution that helps you protect your crops with confidence, Adama confirmed. 

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