Main pests and diseases of soybean of the northern ecotype in the conditions of the non-chernozem zone

Abstract

For the first time in the Central Region of the Non-Chernozem zone, the main pathogens affecting soybean varieties of the northern ecotype in this region - downy mildew, fusariosis, and growth retardation virus were studied; the degree of their pathogenicity was established. The species composition of potential soybean pests has been established. The economic threshold of nodule weevil injuriousness has been determined. Studies conducted in soybean crops of the northern ecotype in the conditions of the Kaluga region have established a complex of pests and diseases. The main insect pests of soybeans of the northern ecotype are represented by the orders Coleoptera, Lepidoptera, Heteroptera, Thysanoptera. The arachnid class is represented by the red spider. The main pathogens affecting soybean varieties of the northern ecotype are fungi of the genus Fusarium sp., Perono-spora, Ascochyta; viruses – growth retardation virus, Southern Mosaic bean virus, Southern Mosaic Virus, Strawberry wither tip virus.