Clivina collaris

Clivina collaris is a beetle species belonging to the family Carabidae (ground beetles). While many members of this family are recognized as beneficial predators, Clivina collaris is known to cause damage to agricultural crops, acting as a direct pest during the early stages of plant growth.

This pest primarily targets the seedlings of various cereals, such as wheat, barley, and rye. In addition to small grains, it has been observed causing damage to sugar beet crops and various vegetable seedlings. The pest is particularly problematic in fields with high soil moisture and rich organic matter content.

The biology of Clivina collaris is centered around its subterranean lifestyle. The beetles spend most of their life cycle within the upper soil horizons. They overwinter as adults, often seeking shelter in the soil or under debris, and become active in early spring, coinciding with the germination of spring-sown crops.

The damage caused by Clivina collaris is significant because it involves the destruction of plant stems just below or at the soil surface. This feeding behavior results in stunted growth, yellowing, and the eventual death of the affected seedlings. The impact is most noticeable as patches of missing plants within the field rows.

Effective management requires an integrated approach. Cultural practices, such as maintaining proper crop rotation and ensuring adequate soil aeration, help to reduce favorable conditions for the beetle. Chemical control, particularly through the use of insecticide-treated seeds, is the most effective method for protecting vulnerable seedlings during the germination phase.

• Implementation of deep tillage to disrupt the pest's habitat.
• Use of high-quality seed treatments to protect young sprouts.
• Weed management to eliminate alternative food sources.
• Regular field scouting during the early vegetative stage.