Neolizerius

Systematic position: Neolizerius (Latin: Neolizerius) belongs to the order Coleoptera and the family Curculionidae (weevils). This genus of insects is characterized by a specialized mouthpart structure adapted for feeding on vascular plant tissues and a distinctive elongated rostrum.

Affected crops and economic impact: This pest primarily targets ornamental shrubs and certain types of woody species. Significant damage occurs in nurseries and urban landscape areas, where the insect damages both young shoots and mature foliage, leading to crown deformity and overall weakening of the host plant's immunity.

Biology and life cycle: The life cycle involves complete metamorphosis: egg, larva, pupa, and adult. The pest typically overwinters as an adult in the soil or under leaf litter. In spring, as stable warm temperatures arrive, the insects become active, initiating feeding and egg-laying processes within the plant tissues.

Damage patterns: Adult insects chew holes in leaves, often leaving the veins intact, which gives the foliage a "lace-like" appearance. Larvae develop within plant tissues, boring galleries into stems or under the bark, which disrupts sap flow and frequently results in the dieback of individual branches or the death of the entire plant.

Protection measures: Controlling population density requires an integrated approach.

• Collecting and disposing of leaf litter in the fall.
• Applying systemic insecticides during the peak adult flight period.
• Utilizing pheromone traps for population monitoring.
• Timely sanitary pruning and destruction of infested shoots.