The BI-2 preparation is an emulsion concentrate containing the active ingredient dimethoate. The preparation is used as an insecticide for protecting winter wheat. Dimethoate has both contact and systemic mechanisms of action, enabling effective control of insect pests at various stages of their development. The preparation is applied as a seed treatment, ensuring protection of the crop from potential infestations. For accurate determination of the dosage and timing of the final application, additional recommendations from the manufacturer are required.