3rd edition of the determinant includes a larger species composition of crop diseases. The determinant covers almost all cultivated plants; it most fully presents those plant diseases that were found on the territory of the Russian Federation and the CIS countries, and in some cases - quarantine objects outside the territory of the former CCSS. The material of the determinant is divided into several main sections: diseases of grain, cereal and fodder crops, diseases of legumes (grain and fodder), diseases of tuberous roots, vegetable and melon crops, diseases of fruit, berry, nut and subtropical crops, etc.