Ukraine is facing a growing problem of herbicide-resistant weeds, which is already affecting the effectiveness of traditional crop protection programs. Five weed species from Ukraine have now been officially included in the international HRAC (Herbicide Resistance Action Committee) database: common ragweed, pigweed, green foxtail, white goosefoot, and barnyard grass. Their inclusion confirms the presence of resistant biotypes that are becoming increasingly difficult to control using standard herbicide strategies.
Experts point out that one of the main causes of resistance development has been the long-term reliance on herbicides with a single mode of action, particularly ALS inhibitors. According to industry estimates, up to 70% of weed control programs in Ukrainian corn production are based on this herbicide group. Continuous selection pressure has resulted in weed populations showing resistance to active ingredients such as nicosulfuron, rimsulfuron, and foramsulfuron.
As a result, farmers are increasingly shifting toward integrated weed management systems. Specialists recommend combining agronomic practices, mechanical cultivation, crop rotation, and herbicides with different modes of action. Greater emphasis is also being placed on pre-emergence herbicides, rotation of active ingredients, and regular field monitoring to detect resistant populations before they become widespread.
Agricultural analysts emphasize that herbicide resistance is no longer a local issue and is rapidly becoming one of the most serious challenges in modern crop production. Delayed response to resistant weeds can lead to higher crop protection costs, lower yields, and a shrinking number of effective herbicide options. For this reason, adapting production technologies and implementing comprehensive weed-control strategies are becoming essential for maintaining sustainable agricultural productivity in Ukraine.