Spotted ground squirrel

Systematic position: The spotted ground squirrel (Spermophilus suslicus, formerly known as Citellus suslicus) belongs to the order Rodentia and the family Sciuridae. It is a ground-dwelling rodent that primarily inhabits open grasslands and steppe environments, forming extensive burrow systems.

Affected crops: This species is a significant agricultural pest, known for its impact on a wide range of crops. It primarily damages winter and spring cereals (wheat, rye, barley), corn, sunflowers, and legumes. Young crops are particularly susceptible during the seedling stage when the plants are most vulnerable.

Biology and development: The life cycle is characterized by a prolonged hibernation period, typically lasting from late autumn to early spring. Upon emerging, the squirrels focus on feeding and reproduction. Females produce one litter per year, with the young reaching sexual maturity in the following season, which leads to rapid population growth under favorable conditions.

Nature of damage: The spotted ground squirrel causes damage by consuming seeds, young seedlings, and the green vegetative parts of plants. Infestations result in thinning stands, bare patches in fields, and reduced overall crop yields. Furthermore, their burrowing activity disrupts the soil surface and can complicate mechanical harvesting and cultivation processes.

Control measures: Integrated pest management strategies are essential for controlling ground squirrel populations:

• Deep plowing of fields to destroy burrow systems and disrupt habitats.
• Application of rodenticides via targeted baiting programs during the active season.
• Fumigation of burrows using registered chemical agents.
• Preservation of local natural predators, including raptors and foxes, to maintain ecological balance.