The book contains the characteristics of the most important walnut breeds common in culture: almonds, walnuts, hazelnuts, hazelnuts, pecans and pistachios. It describes the structure and biology, ecology, growth and productivity, natural distribution in culture, methods of reproduction and national economic value of each species. Detailed agricultural cultivation techniques and methods for creating various kinds of plantings are given, common varieties and forms, pests and diseases of walnut growers and measures to combat them are described. Figures 82, tables 19, bibliography - 74 titles.