Ground squirrel

Systematic position: Ground squirrels belong to the order Rodentia, family Sciuridae, and genus Spermophilus. These are terrestrial, burrowing rodents that can cause significant damage to the agricultural sector during periods of high population density.

Crops affected: Ground squirrels are polyphagous. They cause the most severe damage to cereal crops (wheat, barley), pulses, row crops like corn and sunflowers, as well as forage grasses and pastures.

Biology and development cycle: Their active life begins in early spring after emerging from hibernation. During the breeding season, females produce one litter per year. Population growth is directly dependent on food availability and favorable winter climatic conditions. By mid-summer, as vegetation dries out, many species enter aestivation or go straight into winter hibernation.

Damage patterns and harmfulness: Pests consume germinating seeds, young shoots, and vegetative parts of plants. Significant damage occurs due to the trampling of crops around burrow entrances and the creation of large "bare patches" in fields, where crops are almost entirely destroyed. Additionally, these rodents bring large amounts of soil to the surface, which hampers the operation of harvesting machinery.

Control measures: Management of ground squirrels includes agronomic practices such as deep plowing, which destroys the burrow system. Chemical methods are also applied, utilizing rodenticides in the form of poisoned baits placed directly into the burrows. Effective preventative measures include eliminating weeds along field margins, where rodents typically find shelter.