Green tiger beetle

Taxonomic position: The Green tiger beetle (Cicindela campestris) is a member of the order Coleoptera and the family Carabidae. While generally known for their predatory behavior, in agricultural ecosystems, their activity can sometimes negatively impact the growth and development of young crops through soil disturbance and occasional feeding on vegetation.

Biology and life cycle: These beetles are sun-loving predators that thrive in dry, sandy, or open soils. The life cycle spans from one to three years, involving a larval stage where the larvae dwell in deep, vertical burrows. The beetles exhibit high mobility, making it easy for them to colonize new fields during the warm summer months.

Nature of damage: The damage is twofold: direct feeding on young shoots and buds during food shortages, and indirect damage caused by the excavation of numerous burrow openings in the soil. This tunneling activity can destabilize the root systems of germinating seeds and young seedlings, leading to reduced vigor or premature plant death.

Crops affected: The pest primarily targets cereal crops, seedling stages of various industrial plants, and young nursery stock. The presence of these beetles is often most noticeable in fields with loose, well-drained soil, where the larvae can easily establish their nesting sites without disturbance.

Control measures: Management of the Green tiger beetle includes both preventative and remedial actions. Deep plowing of fields during the autumn is highly effective at destroying larval habitats. If the population density reaches significant levels, localized application of approved contact insecticides can be used to mitigate further damage to the field.