Ukrainian Farmers Face Mass Rodent Infestation Due to Abnormal Winter

In February 2026, Ukrainian farmers encountered an unexpected challenge. The unusually mild winter has led to a record increase in the population of rodent-like pests on agricultural lands. According to the latest data, as of February 15, the density of colonies in several farms has already exceeded critical levels, threatening the harvest.

This is reported by AgroReview

Causes of the Rodent Population Surge

The prolonged snow cover in January created favorable conditions for rodents. Under the layer of snow, a warm microclimate formed, protecting mice from the cold and providing comfortable conditions for reproduction. As a result, rodents are causing significant damage to the tillering nodes of winter wheat and the root neck of rapeseed, jeopardizing future yields.

• Direct Losses: Plants damaged by rodents become less frost-resistant, and the recovery of vegetation in spring is in question. Experts predict that crop losses may reach 15–20%.
• Economic Pressure: The need for unplanned rodent control measures increases costs per hectare by an additional $15–20. Considering the rising prices of fuel and protective agents, this will lead to significant financial losses for farms.

Recommendations for Farmers on Rodent Control

Experts emphasize the importance of prompt action. There is no need to wait for the complete melting of snow—field monitoring should begin now. Inspections should be conducted at least once a week. If more than 3–5 active rodent colonies are found per hectare, control measures should be initiated immediately.

Specialists from the State Service of Ukraine on Food Safety and Consumer Protection urge not to wait for the complete melting of snow and to conduct monitoring now.

To control the population of rodent-like pests, it is recommended to use biological preparations based on bacteria (rodenticides) or proven chemical baits. At the same time, safety measures should be observed to avoid harming wild birds and animals.

Particularly high risks of rodent spread are observed in fields located near forest belts and perennial grasses, as these areas become hotspots for the initial expansion of pests into winter crop fields.