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Trends in herbicide resistance in North Africa, Middle East and West Asia
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28 April 2026
Agriculture across North Africa, the Middle East, and West Asia faces challenges posed by diverse climatic conditions, varied cropping systems, and weed management issues. Staple crops such as wheat, barley, and rice, alongside vegetables and tree crops, form the backbone of regional agriculture. However, the prevalence of herbicide-resistant grass weeds, such as Lolium rigidum and Avena sterilis, highlights significant challenges. Resistance evolution is driven by the extensive use of acetolactate synthase (ALS) and acetyl coA carboxylase (ACCase) inhibiting herbicides, often in mono-cropping systems with limited implementation of integrated weed management (IWM). Broadleaf weeds, including Conyza bonariensis and Sinapis arvensis, also exhibit resistance to multiple herbicidal modes of action, compounding management difficulties. Comparative data reveal that the intensity of herbicide resistance in the region, particularly in Israel, exceeds global averages relative to agricultural land area. Resistance trends emphasize the urgent need for IWM to mitigate resistance evolution, and ensure agricultural productivity.
- 1 Introduction
- 2 Major weed species in the regions of North Africa,the Middle East, and West Asia
- 3 Herbicide use across the region
- 4 Summary and conclusion
- 5 References