EWRS and HRAC Training course: “Confirming and characterizing herbicide resistance”

@APWSC 2023 in Phuket, Thailand

Phuket, Thailand, 26th of November 2023

The EWRS Education & Training Working group and HRAC are organizing a pre-congress workshop on herbicide resistance before the APWSC 2023 in Phuket (Thailand). This free half day workshop will introduce students and researchers to methods and considerations for the identification, sampling, confirmation and characterization of evolved herbicide resistance in weed populations. 

The aim of the workshop is to provide attendees with an overview of the steps required to identify, confirm and manage herbicide resistance. Specific areas covered will include identifying and sampling suspected resistant populations, methods for surveying herbicide resistance at various scales, whole plant resistance assays and resistance testing methods, dose response analysis and statistics, resistance diagnostics and identifying mechanisms of resistance.

We will use our experience of working with blackgrass (Alopecurus myosuroides) to provide some real-world examples, though we anticipate that the methods discussed will be relevant to all weed species with suspected herbicide resistance and cropping systems (e.g. rice). After an introduction on the different topics, the workshop will be focused on practical approaches aiming to identify and characterize herbicide resistant populations in a day-to-day work. 

This workshop will be suitable for students, researchers, and professionals with an interest in understanding how to characterise herbicide resistance from field to laboratory. No prior knowledge is assumed, though attendees should have a very basic understanding of herbicide use in agroecosystems.


Professor Dr. Paul Neve (Department of Plant & Environmental Sciences, University of Copenhagen)
Dr. Roland Beffa (Senior Scientist Consultant, Germany)

Date of the workshop: November 26th 2023, 8:30.00 am - 13.00 pm (followed by sponsored lunch) at the Marriott Courtyard Phuket

Course Organizers

Prof. Dr. Hüsrev Mennan, EWRS Scientific Secretary (Ondokuz Mayis University, Turkey)
Dr. Lena Ulber, Chair of the EWRS Working Group Education & Training (Julius Kuehn-Institute, Germany)

Fees and costs

There is no fee to attend the course which will be limited to a maximum of 50 attendees. 


Please register for the workshop via the online conference registration system.


The EWRS has decided to allocate a subsidy to facilitate participation of young research fellows for this course. Applicants must comply with the following conditions:

  • actively participate in a PhD or M.Sc. program,
  • not exceed 35 years of age at the starting date of the course,
  • have not previously received more than three subsidies to participate in a EWRS/IWSS symposium.

If you meet these conditions and are interested in the possibility of getting a partial subsidy (maximum 500 Euro) from the EWRS, please send your application plus a short motivation letter before 01st October 2023 (absolute deadline) by email to Prof. Dr. Husrev Mennan (hmennan@omu.edu.tr).

Please find also HERE the registration form for who wants to apply for the EWRS travel subsidy. The regular registration for the course should be done via the APWSC conference registration system.