Gerbils

Systematic position: The genus Meriones (gerbils) belongs to the order Rodentia and the family Cricetidae. These rodents are well-adapted to arid environments and are recognized as significant agricultural pests in many regions where their populations expand into arable lands.

Crops affected: Gerbils are highly polyphagous, attacking a variety of crops including cereals (wheat, barley), legumes, oilseeds, and vegetables. They also cause substantial damage to orchard trees and nursery saplings by gnawing on the bark and roots, leading to the stunted growth or death of plants.

Biology and life cycle: These rodents live in complex burrow systems organized in colonies. They have a high reproductive rate, which allows them to quickly increase their numbers when food is abundant. Their life cycle is closely linked to seasonal fluctuations, with peak breeding activity occurring in spring and autumn months.

Nature of damage and pest impact: Damage occurs through consumption of green foliage, seeds, and stems, as well as massive food hoarding in their underground galleries. A large colony can destroy a significant percentage of a crop yield in a short period. Their burrowing activity further degrades soil structure and facilitates local erosion.

Control measures: Management of gerbil populations involves a combination of cultural and chemical practices. Key methods include:

• Deep plowing to destroy burrow systems and nesting sites.
• Eliminating weed cover around field borders to reduce habitat suitability.
• Targeted application of rodenticides in accordance with agricultural safety regulations.
• Encouraging natural predators such as birds of prey and wild carnivores in the area.