Neo-Stop L 500 is a plant growth regulator containing chlorophos at a concentration of 500 g/l. The product is registered under number 7507 and was registered on January 15, 2014. The manufacturer is the Ukrainian company LLC 'Agroflex'. The application field is potato, indicating its use in the agricultural sector for controlling plant growth and development. The product can be used to regulate plant growth, prevent undesirable physiological processes, and ensure higher crop yields. Neo-Stop L 500 is a ready-to-use aqueous solution, allowing easy application at various stages of potato cultivation. The product is highly effective and environmentally safe, making it popular among agricultural producers. This growth regulator can be used both preventively and when specific problems with plant growth and development arise.