The UK pesticide register has added a new herbicide from FMC and a new fungicide from Bayer in its latest approval round, giving British growers fresh options from two of the world's largest crop protection manufacturers.

The additions appear in the most recent update to the official register, the database of plant protection products authorised for use and sale in the UK. For farmers, a register listing is the final regulatory gate: until a product appears there, it cannot legally be bought, sold or applied to a British crop, whatever its approval status elsewhere.

Who got what?

FMC, the US-based agrichemical group, secured registration for a new herbicide. Bayer, the German life sciences multinational, added a new fungicide to the register.

Both companies are established suppliers to UK agriculture. FMC built its portfolio partly through the 2017 acquisition of significant crop chemistry assets, while Bayer's crop science division absorbed Monsanto's business in 2018 and remains one of the biggest sellers of fungicides to European cereal growers.

Why does a register listing matter?

A listing on the UK pesticide register is not a marketing formality. It is the legal trigger for commercial launch.

Once a product is on the register, suppliers can move it into the distribution chain, agronomists can recommend it, and growers can apply it under the terms of its authorisation. Those terms matter. Each approval carries conditions covering:

• the crops it can be used on;
• maximum individual and total application rates;
• the latest growth stage or timing for spraying;
• buffer zone and environmental restrictions;
• harvest intervals.

Growers should read the product label before use. Register authorisation and label conditions govern what is lawful in the field, not the supplier's brochure.

What changed with Brexit approvals?

Since the UK left the EU, product approvals have diverged. The UK now runs its own authorisation system under the Chemicals Regulation Directorate (CRD), the regulator that assesses plant protection products for the British market.

That means a product can win UK approval without an EU registration, and vice versa. It also means UK growers can gain access to tools their continental counterparts do not have, and lose access to others that remain authorised in the EU. Each register update from the CRD is therefore worth watching on its own terms.

For agronomists and farm buyers, the practical point is simple. Register movements, both additions and expiries, shape the annual spray programme. A new herbicide entry can open an alternative mode of action for resistance management. A new fungicide listing can strengthen a septoria or rust control programme in cereals, depending on its active substance and use pattern.

What should farmers watch next?

The next steps follow a familiar pattern. After registration, suppliers typically confirm UK availability, pack sizes and pricing through their distribution networks, and agronomists begin building the products into recommendations for the following spraying season.

Growers should check the full entry on the official register for the specific crop claims, application rates and conditions attached to each authorisation, because those details determine where the products fit in a rotation.

Watch for launch statements from FMC and Bayer on formulation, pack size and price, and for the next register update, which will show whether further approvals or any expiries follow in this round.