Distribution of golden potato nematode in the soils of the Omsk region

Abstract

The distribution of the golden potato nematode in the soils of the Omsk region has been recorded since 2003. The potential danger of expanding the area of colonization by this phytohelminth is associated with a loss of potato yield from 30 to 90%. Of the 32 districts of the Omsk region, 21 districts were found to be populated with the golden potato nematode. Potato production in the Omsk region is mainly carried out by private individuals. In many districts of the Omsk region, the share of personal subsidiary plots in the produced potatoes reached 95%. The studies were carried out in 2017 - 2020 and it was found that cysts with viable larvae of the golden potato nematode were detected in the samples of the studied soil samples, the degree of infection was high and ranged from 50 to 90 cysts. Under these conditions, the priority direction of reducing the number of phytohelminths is the use of environmentally friendly methods of control, such as the fungal microbiological preparation Nematofagin Mikopro. In the areas with the use of a biological product, the degree of infection was average and ranged from 45 to 13 viable cysts.