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Resistance management for sustainable agriculture and improved public health

Methods Team News

  • IRAC Holds its 60th International Meeting in Cambridge, UK

    The Insecticide Resistance Action Committee (IRAC) International held its 60th Meeting from April 14–17, 2026, in Cambridge, United Kingdom. Representatives from member companies, regional groups, and Working Groups came together to review progress, discuss emerging resistance management challenges, and define strategic priorities for the years ahead.

    The meeting opened with a strategic session focused on IRAC’s vision beyond 2026 and the future development of a global resistance database. Participants reviewed recent achievements, explored approaches to improving resistance monitoring and information sharing, and discussed how resistance data can be made more accessible and valuable to stakeholders worldwide. The programme also featured expert perspectives on the application of molecular biology and emerging technologies to support insect resistance management.

    A key focus of the second day was a workshop examining the role of low-dose insecticides and their implications for insect resistance management (IRM). Discussions explored regulatory and technical considerations, the relationship between dose and resistance selection, and the opportunities and risks associated with low-dose approaches and emerging insect control traits. The workshop provided an opportunity for participants to exchange perspectives and consider future IRAC guidance in this area.

    The third day addressed resistance management communication and stakeholder engagement. Topics included insecticide resistance labeling initiatives, resistance risk assessment approaches, updates from IRAC Working Groups and regional committees, and discussions on strengthening collaboration between IRAC and public-sector partners involved in resistance management.

    The meeting concluded with an Executive Committee session focused on IRAC’s organisational priorities, resource allocation, and future strategic direction. Discussions included opportunities for enhanced collaboration across Resistance Action Committees (RACs), digital resource development, resistance database initiatives, and the continued delivery of practical tools and guidance to support sustainable insecticide use worldwide.

    Presentations, meeting notes, and supporting materials are available to IRAC members when logged into the website.

  • Four new susceptibility Test Methods approved by IRAC

    Four new susceptibility test methods for bed bugs, cockroaches, Jassids and rice stem borers have been validated and approved by the IRAC Test Methods Working Group. Details of the methods are available in the IRAC Test Methods Library with the option available to download the methods as pdf files.

  • New IRAC video illustrating Test Method 010 with Frankliniella occidentalis

    The latest IRAC Test Method Video to be published is Method No. 010 on Frankliniella occidentalis. Details of the method can be found on the Frankliniella occidentalis methods page with links to the Method No 010 pdf and the new video.

  • New susceptibility test method video for Stinkbugs

    The IRAC Methods Team have produced another video in their series of test method videos. This video shows how to carry out Method No.030 evaluating the susceptibility of stinkbugs to insecticides from mode of action groups, 1A (carbamates), 1B (organophosphates), 3A (pyerethroids), and 4A (neonicotinoids). The method has been validated for Euschistus heros and can be used for susceptibility baseline testing and resistance monitoring.

  • Further Test Methods for Pollen Beetles

    IRAC resistance monitoring methods have now been developed for adult Pollen Beetles (Meligethes aeneus) using different chemistries. There is now Method 011 for pyrethroids, Method 021 for neonicotinoids, Method 025 for organophosphates and Method 027 which is under review for indoxacarb.

  • Two new Test Methods from IRAC

    IRAC Test Methods for Myzus persicae nymphs (No. 023)  and for Aphis gossypii nymphs (No. 024), both for use with the MoA Group 28 active, cyantraniliprole, have been developed and posted on the website by the IRAC Methods Team. The methods are available for downloaded from the IRAC website via the links: Method No. 023 and Method No. 024.

  • New Aphid Test Method from IRAC

    IRAC Test Method (No. 019) for aphids has just been finalised, approved and posted in the Methods Team area of the IRAC website. The method is suitable for monitoring resistance in a number of different aphid species and product classes, the details of which along with a method description are outlined in the Test Method document.