The Insecticide Resistance Action Group (IRAG)

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

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

About the Insecticide Resistance Action Group (IRAG)

Weed Resistance Action Group (WRAG)

Fungicide Resistance Action Group (FRAG)

IRAG guidance

Insecticide resistance and its management

Insecticide resistance status in UK cereal crops

Insecticide resistance status in UK oilseed rape crops

Insecticide resistance status in UK brassica crops

Insecticide resistance status in UK potato crops

Further information

Insecticide Resistance Action Committee (IRAC)

Weed Resistance Action Group (WRAG)

Fungicide Resistance Action Group (FRAG)

Help us safeguard the efficacy of insecticides

As part of a UK aphid-monitoring programme, Rothamsted Research needs aphid samples, especially those that unexpectedly survive treatment with insecticides. Although any aphid species can be submitted, the researchers focus on some species/situations more than others to reflect samples received and the need to detect new resistance issues emerging in the UK aphid population.

Aphid sampling protocol


November 2020

November 2019

April 2019

November 2018

April 2018

November 2017

April 2017

October 2016

April 2016

October 2015

Complete RAG information published before 2016 can be accessed via the National Archives

Mode of action labelling for UK plant protection products

From 2023, all UK plant protection products will include mode of action (MoA) information on their labels.

The decision – by the Health and Safety Executive (HSE) – follows a joint statement issued by the UK Resistance Action Groups (UK-RAGs) in December 2017. This said that greater prominence of MoA information would help farmers and agronomists make informed resistance management decisions.

Since then, members of the industry body ‘CropLife International’ have made a voluntarily commitment to include MoA icons and groups on all product labels by 2023. Following consultation with the Crop Protection Association (CPA), the HSE announced that it will become a legal requirement to include MoA information on all UK product labels from January 2023.