Know How / Disease management

Get advice on managing disease in wheat, barley, oilseed rape, potatoes, and sugar beet. Find the best ways to combine cultural and chemical controls and how to deal with fungicide resistance. See tips, insights and farmer case studies focusing on major disease threats such as septoria, yellow rust, ramularia, phoma leaf spot and blight and how to combat them.

Advice and tips


Ramularia risk to barley as key fungicide banned

Spring barley growers need to make sure they have a ramularia-active fungicide in their T2 sprays this season as the best product for this disease is being banned this week.…


Fusarium: How to assess and manage the risk in cereals

Protecting crops against the damaging effects of fusarium ear blight is essential in any year, but it could be even more so this season, given the reduced wheat area and…


Rust control advice to achieve high-protein milling wheats

Cereal rust diseases can cut key protein levels in breadmaking wheats, and so growers need a strong rust active in their flag leaf sprays or they may miss out on…


Tips on getting most from clubroot-resistant OSR varieties

Clubroot-resistant OSR varieties are a valuable tool for keeping the crop in the rotation, but growers should also deploy other measures such as liming affected fields. That’s because an over-reliance…

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Case studies


Virus-tolerant barleys could offer insecticide-free future

Virus-tolerant winter barley varieties could be the way forward to avoid spraying insecticides in the autumn, but there are some doubts about whether these varieties give good enough yields and…


Wheat variety assessed for ability to cut fungicide costs

One big farming company is hoping that growing the more disease-resistant winter wheat variety Extase will help it fine-tune fungicide spending this spring. Sentry grew 100ha of the variety last…


How two wheat growers cut their fungicide bills below £70/ha

Two Herefordshire wheat growers spent less than £70/ha on fungicides last year and still yielded over 11t/ha even in the disease-prone wetter west of England. Both took part in a…


How Berks wheat grower increased his yields by 20%

Tissue testing has helped Berkshire wheat grower Dan Willis push his yields up to 20% higher while his resulting healthier crops has seen him cut his fungicide costs. Checking his…

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Analysis: How the loss of chlorothalonil will affect farmers

The multisite fungicide chlorothalonil – the mainstay of many disease control programmes in a range of crops – has finally gone, following an EU ban on sales last year and…


Why drilling leftover wheat seed early risks disease

Wheat growers planning to drill earlier this coming autumn need to consider the increased septoria risk when using up seed left over from last winter. That’s because some of the…


Why biopesticides will play a bigger role on arable farms

Biopesticides – a group of crop protection tools made from living micro-organisms or natural products – now represent more than 10% of the UK agrochemicals market, with sales growing at…


Why wheat growers should tailor fungicides to drilling date

Growers can more precisely target their fungicide spend to manage septoria, by having a better understanding of how wheat variety choice and drilling date affects the risk from this costly…

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Chlorothalonil alternatives to fight ramularia in barley

Adding a multisite fungicide to spring barley T2 flag leaf sprays in June can give a yield advantage of up to 0.5t/ha due to the control of ramularia disease. With…


Twitter round-up: Winter wheat T2 applications are all-go

With T2 fungicide sprays going onto the more forward winter wheat crops, thoughts turn to growers who have experienced a particularly tricky season with an exceptionally wet winter and dry…


Yield-improving barley seed dressing set for autumn

A yield-enhancing seed fungicidal dressing for barley will be available this autumn to encourage establishment and rooting, and lift harvest yields by about 0.2t/ha. The twin-fungicide product Vibrance Duo is…


Brown rust threat builds for wheat in warm spring spell

Winter wheat growers are being urged to look out for early attacks of brown rust, which can devastate yields and are encouraged by the current warm dry weather. Brown rust…

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Video: Phone app is cheaper way to monitor crops with a drone

A new smartphone app offers farmers a cheaper and easier way to monitor their crops, simply with a mobile phone and a cheap drone. Developed by Northumbria-based Drone Ag, the…


Video: Early potato harvest start is worst for 40 years

Brothers Peter and Philip Le Maistre are sixth-generation Jersey farmers and for them this potato season has been the worst since covering spuds with plastic started to be used on…


Video: Jersey early potato yields dip 20% after frosty February

Jersey’s early potato harvest is almost a month late this spring, with yields expected to be down one-fifth after the Beast from the East frosted off young plants barely out…


Video: Crop Doctor sees septoria rising to worrying levels

Disease levels are rising in the nation’s wheat crops with the wet weather likely to encourage septoria to spread and put growers on alert to make sure their fungicide programmes…

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