In conditions of growing environmental tension, the desire to obtain not only high yields, but also clean products becomes completely justified. The richest storehouse in this sense is nature itself. To preserve the harvest of fruit and berry crops, especially in household, collective gardens and vegetable gardens, you can very successfully use infusions and decoctions from plants of the local flora, waste of cultural species. Knowledge of some agrotechnical measures is also useful - proper rotation of crops, joint planting, sowing plants that repel pests or prevent the development of diseases. The book was written with the support of employees of the Russian State Agrarian University - Moscow Agricultural Academy named after K. A. Timiryazev