The book in a popular form describes all types of cancer of fruit trees, describes the external signs of the manifestation of each of them, indicates how they differ from the signs of the development of other outwardly similar diseases, tells about the sources of the spread of cancer. Drawings supplementing the characteristics of diseases are prevented. Agrotechnical, biological and chemical control measures available to every amateur gardener are recommended. For amateur gardeners. It can be useful for gardeners of farm and collective farms.