Cereal Product Focus: System 50

Posted on 28 August 2026

Clayton Plant Protection offers a wide range of leading herbicide options for cereal crops this autumn, helping growers put the right building blocks in place for successful weed control.

System 50 is a residual herbicide for use in winter and spring cereals for the control of black-grass, annual meadow-grass and some broad-leaved weeds.

  • 500 g/L flufenacet: an ideal partner for robust black-grass programmes
  • Flexible application: pre/post-emergence use in winter and spring cereals
  • Ideal herbicide programme partner providing residual activity against key grass weeds as part of an effective resistance-management strategy

Flufenacet: foundation for blackgrass control

AHDB research highlighted flufenacet as a key active to start with in blackgrass control programmes and that further actives are then necessary to achieve good levels of control.
Our straight flufenacet System 50 and our co-formulated products, Clayton Facet XL and Sabre XL, offer a great starting point for blackgrass weed control this autumn.


Building an effective autumn herbicide strategy

Planning is essential for a successful herbicide programme:

  1. Identify target weeds: Focus on grass & broad-leaved weed species that are most likely to reduce crop yield or quality.
  2. Understanding weeds: knowing when each species emerges/competes helps target them at their most vulnerable growth stages.
  3. Product choice: Match actives to target weeds and ideal timings.
  4. Use sequences and mixtures: Combine pre-emergence sprays with sequential follow-up applications to maintain residual activity and aim to use multiple modes of action to reduce selection pressure and support resistance management.

 

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