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 9 December 2025.

For key charts, visit the disease target web pages (via the links in the crop-specific sections below).

These pages mainly feature multi-year and multi-site data, which usually 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

We work closely with Teagasc (Agriculture and Food Development Authority) in the Republic of Ireland to share dose-response data, which includes data from barley powdery mildew and barley brown rust trials in Ireland.

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

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