Abstract
Control of Globodera rostochiensis in Ukraine depends on the use of resistant potato cultivars. In the last 2 years, the proportion of resistant entries in the official Ukrainian list has increased from 27% to 45%, and the number of Ukrainian‐bred resistant cultivars has increased from 3 to 12. It is now suggested that resistant cultivars are classified into the categories‘resistant and tolerant’ and ‘resistant but only relatively tolerant’. The choice of these cultivars should depend on the nematode population of the soil. Control of Ditylenchus destructor is also considered, on the basis of prophylactive and agrotechnical measures.
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