The mass planting of untested Ukrainian walnut orchards with French and Moldovan seedlings has resulted in their mass destruction due to extreme weather conditions. According to Professor Volodymyr Mezhenskyi, the high demand for specific planting material in the 2010s was not met by domestic varieties, leading producers to plant imported varieties that were not acclimatized to the local conditions. As a result, the orchards experienced mass freezing and destruction.