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


How to control phoma disease in oilseed rape crops

Phoma stem canker is a highly damaging disease in oilseed rape, with Fera Science's CropMonitor estimating losses at £100m each season in the UK. Early-season epidemics are capable of decimating…


Biostimulants - what they are and how farmers can use them

Biostimulants are being heralded as part of the solution to many of the challenges facing today’s arable farmers - from plugging the gaps in the declining fungicide armoury to dealing…


Advice on minimising the damage from BYDV in cereals

Winter cereal growers are being urged to focus on cultural controls - such as delayed drilling and good weed control - to ward off a major virus disease this season…


How tackling take-all can lift winter barley yields

There is a common perception that growers don’t need to use any control measures for take-all when growing winter barley. However, experts believe there is now a growing case. Changes in barley management…

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Case studies


Kent grower shares secret to rapeseed world-record yield

Drilling oilseed rape late to avoid pest damage and adverse weather has helped Kent grower Richard Budd break the rapeseed yield world record. Farming with his father, David, at Stevens…


How to grow a 10t/ha-plus malting spring barley crop

Norfolk grower Alex Wilcox grew a bumper 10t/ha-plus malting spring barley crop in 2019, using low seed rates and early drilling to achieve monster grain ears at harvest. His barley…


How trials are helping two farmers maximise crop margins

Managing risk is the key objective for both AHDB’s two Strategic Cereals Farm hosts, as they look to use some of their on-farm trial lessons to manage crops affected by…


Norfolk grower trials closed-transfer sprayer system

A closed-transfer system for safely mixing and loading pesticides into sprayers has been successfully piloted on several UK farms, offering benefits to operators and the environment. The system transfers neat…

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New cereal fungicide gives 0.3t/ha yield lift in AHDB trials

New cereal fungicide Revystar XE from BASF has given strong results on septoria in the AHDB’s fungicide dose response work, with its greater persistence of control resulting in an extra…


Overlooked soil disease can halve oilseed rape yields

A soil-borne pathogen found in wheat and oilseed rape crops can cut rapeseed yields by up to 50%, and experts suggest growers need to look at longer rotations and cultivation…


Key wheat varieties see slump in yellow rust rating

A network of early warning sites suggests that yellow rust is overcoming genetic resistance inherited from a key wheat parent, affecting a number of popular varieties. This spring saw several…


How better aphid tracking could reduce BYDV spraying

Aphid monitoring at an individual field level could help cereal growers make better decisions about the heightened post-neonicotinoids barley yellow dwarf virus (BYDV) threat this autumn. Researchers investigating tools that…

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Corteva to delay key fungicide Inatreq’s launch to 2021

Agrochemicals giant Corteva is to delay the launch of its widely awaited novel wheat fungicide Inatreq until 2021 to allow it to satisfy the UK regulator's enquiries. The fungicide, with…


Nearly two-thirds of OSR crops show key disease

Almost two-thirds of oilseed rape crops tested are showing signs of light leaf spot, and if mild weather continues, infection levels from the crop’s most destructive disease could rise. Mild…


Growers challenged to beat Adas experts in fungicide contest

An annual wheat fungicide margin challenge opens again this spring. Entrants are invited to devise an innovative spray programme with the highest margin over fungicide cost. The competition, which is…


Virus discovery may help fight phoma disease in rapeseed

Oilseed rape crops may now benefit from improved phoma resistance after the discovery of a virus present in the phoma stem canker fungus. The virus, which was identified by researchers…

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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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