Eurasian harvest mouse

Systematic position: The Eurasian harvest mouse (Micromys minutus) belongs to the order Rodentia and the family Cricetidae. It is one of the smallest mammals, uniquely adapted to living in tall grass and agricultural crop fields.

Crops damaged: This rodent primarily targets cereal crops, including wheat, rye, oats, and millet. It feeds on the seeds and stems of these plants, and in orchards or nurseries, it can occasionally damage the bark of young trees during winter periods.

Biology and life cycle: The species is known for its ability to construct complex spherical nests woven from grass stems, often positioned above ground. They are prolific breeders; in optimal conditions, a female can produce multiple litters per year, with each litter consisting of five to eight pups, leading to rapid population growth.

Nature of damage and economic impact: The damage is manifested by the gnawing of plant stems, causing them to fall or "lodge," which significantly hampers harvest efficiency. Beyond direct consumption of grain, their activity often leads to grain shattering and secondary losses, ultimately reducing the overall yield and quality of the crop.

• Timely harvesting to minimize the duration of exposure to rodent feeding.
• Deep tillage and plowing after harvest to destroy underground burrows and surface nesting sites.
• Weed management in field margins and surroundings to eliminate habitat and nesting grounds.
• Strategic use of registered rodenticides when pest populations exceed acceptable thresholds.
• Implementation of integrated pest management (IPM) to encourage natural predators like birds of prey.