Fungicide performance in cereals and oilseed rape

Our fungicide performance work provides high-quality, independent information on the relative efficacy of fungicides against key diseases in wheat, barley and oilseed rape.

Knowledge of the potential power of an active ingredient (or product) is essential in disease management. First and foremost, it will help you gauge the potential return on your spray investments. Critically, it can be used to develop effective fungicide programmes that balance the need to control disease with the need to protect chemistry from fungicide resistance.

Data released at the Agronomy Conference on 11 December 2024.

For key charts, visit the disease target web pages (via the links in the crop-specific sections below). These pages feature multi-year and multi-site data, which provide the best indication of efficacy. For all the latest results, such as single year charts, download the all-data PDF (via the link above).

• Septoria tritici
• Yellow rust
• Brown rust
• Fusarium head blight

• Rhynchosporium
• Ramularia
• Net blotch
• Mildew (historic data)

• Light leaf spot
• Phoma leaf spot and stem canker
• Sclerotinia (historic data)

• Fungicide performance trials are conducted across multiple sites and seasons to ensure they produce reliable, relevant and independent results
• The trials are in areas most likely to produce high pressure for the target disease(s)
• We use varieties that are highly susceptible to the target disease(s)
• The results are used to create dose-response curves (charts), where each curve represents the average performance of a single fungicide product at various doses against a specific disease (in terms of disease control and yield impact)
• Curves are published for ‘protectant’ and ‘eradicant’ situations, where applicable
• Generally, when more fungicide is applied, less disease will be present in a crop
• When interpreted correctly, the curves can help identify the best products and doses – helping you strike a balance between disease control and cost efficiency
• Selecting more appropriate products and reducing doses also contribute to the sustainability of farming and the long-term viability of fungicides (as part of resistance management efforts)

If you are interested in the details behind the trials, including our research partners and historic data, visit our guide to fungicide performance page.