The Contador r.k. preparation is a water-soluble concentrate containing the active substance imidacloprid. Imidacloprid belongs to the group of insecticides and is used to protect plants from pests. The preparation is used in agriculture on tomato and apple crops. For accurate determination of application method, mode of action, dosage, last application date, and maximum number of treatments, additional data from the product instructions are required. The preparation is manufactured by the company Nertus, located in Ukraine.