The Weed Resistance Action Group (WRAG) produces guidance on pesticide resistance issues. Hosted by AHDB, this information can be used to help protect crops and the long-term efficacy of herbicides.

Website
https://ahdb.org.uk/knowledge-library/the-weed-resistance-action-group-wrag 

The AHDB-supported Resistance Action Groups (RAGs) are informal, UK-based groups consisting of experts from the CropLife UK member companies, other representatives from the agrochemical industry, a range of independent organisations, including public-sector research institutes, and the Chemicals Regulation Directorate (CRD, part of HSE).

Find lots of information and resources on the AHDB website here - https://ahdb.org.uk/knowledge-library/the-weed-resistance-action-group-wrag and/or join the WRAG LinkedIn group at https://www.linkedin.com/groups/12757011/ 

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Managing weeds in arable rotations

AHDB Guide from 2021 incorporating WRAG guidelines. Weed control is vital for high yields of good-quality crops and to prevent the spread of pests and diseases, e.g. ergot. Yet with fewer active ingredients, a need to protect water and manage herbicide resistance, the weed challenge must be managed across the rotation.