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.

We’re gearing up to launch the latest fungicide performance data online at the Agronomy Conference on 9 December 2026.

This year, we've reviewed the way dose-response curves are presented to make sure as many people as possible can use the results.

The changes will mainly affect graph colours and labels.

During the transition period, some graphs may be temporarily unavailable.

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

The key charts mainly feature multi-year and multi-site data, which usually provide the best indication of efficacy.

If a chart you are looking for is not available, please contact us.

• 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.