Pika

Taxonomic position: Pikas (genus Ochotona) are members of the order Lagomorpha and the family Ochotonidae. Although they appear small and harmless, they act as significant pests in various mountainous and steppe agricultural landscapes.

Affected crops: These rodents primarily target forage grasses in pastures and hay meadows. When present in high densities, they also consume seedlings of grain crops and vegetables, significantly reducing the biomass available for harvesting and grazing livestock.

Biology and life cycle: Pikas remain active throughout the year and do not hibernate. They are famous for their unique behavior of haymaking, where they collect and dry vegetation during the summer to consume during the winter months. Their rapid reproductive cycle allows populations to expand quickly if environmental conditions are favorable.

Nature of damage: The primary damage stems from intense grazing and vegetation removal. By stripping the land of green matter, they degrade pasture quality and contribute to soil erosion. Their burrowing activity further destroys the root systems of cultivated plants, creating hazards for machinery in agricultural fields.

Control measures: Effective management of pika populations involves a combination of mechanical and biological strategies:

• Maintaining clean field borders to reduce suitable nesting habitats.
• Deep tillage of infested areas to collapse burrow systems.
• Applying registered rodenticides targeted directly into the burrow openings.
• Promoting local biodiversity to support natural predators like raptors and small carnivores that regulate rodent numbers.