CHESTER — this is a herbicide in water-suspension form with the active ingredientnicosulfuron, concentration of which is 750 g/kg. The preparation is intended for use on maize and contains the surfactant "York". It is registered in Ukraine under number 4799 with registration date 07.12.2010. The manufacturer of the preparation is IP British Eco System Technology, Ukraine. CHESTER is used to combat all kinds of weeds on maize fields. Its use allows effective control of unwanted vegetation, ensuring healthy crop development. The preparation has a high degree of safety and effectiveness, making it popular among agricultural producers. Application of CHESTER requires compliance with certain norms and recommendations regarding dosage and timing of treatment. Although there are no exact data on the amount of preparation to be used, its application is recommended in accordance with the manufacturer's instructions to achieve maximum effect and comply with ecological standards.