Phytosanitary bases of winter wheat cultivation in Western Siberia
Winter wheat currently occupies 255 thousand ha in the West Siberia, with 69,2 % located in the Altai Territory. The pest communities were established for the periods of the crop yield structure elements formation, as well as the harmfulness thresholds of the winter wheat main pests in the West Siberia. The phytosanitary parameters of winter wheat seeds are presented, the main pathogens of which were root rot pathogens - Fusarium fungi and Septoria blotch causative agent -Parastagonospora nodorum. The paper presents the development and implementation sequence of system elements of protective measures.