Tiger weevil

Neoplinthus tigratus is a species of beetle belonging to the family Curculionidae. In agricultural environments, this weevil is recognized as a persistent pest of fruit-bearing trees. Its systematic position within the order Coleoptera highlights its role as a significant phytophage capable of affecting the health and longevity of orchards if left unmonitored by farm management teams.

This insect primarily infests stone and pome fruit crops. The adult beetles feed on the buds, young leaves, and tender bark of new shoots. This feeding behavior causes physiological stress to the plant, which often results in stunted growth and a decline in overall tree vigor, directly impacting the economic viability of the orchard in the long term.

The biological cycle of Neoplinthus tigratus is highly synchronized with the phenology of its host plants. Overwintering occurs in the adult stage, typically sheltered in soil debris or bark crevices. As spring temperatures rise, the insects emerge to initiate feeding and subsequent reproductive phases. Eggs are laid in the tissues of the host, where the larvae then develop, causing further internal damage to the plant structures.

The damage caused by this pest is characterized by distinctive feeding patterns on leaves and small lesions on young branches. The harm is cumulative, as the combined feeding of adults and larvae can weaken the tree's vascular system, making it more susceptible to environmental stress and secondary pathogen infections, eventually leading to reduced fruit yields or tree death.

Effective management and protection strategies include:

• Regular monitoring of orchard populations using visual inspection and trap bands.
• Application of selective insecticides during periods of peak adult activity.
• Sanitation practices, such as removing infested plant materials during the dormant season.
• Implementation of cultural practices that promote strong tree health and rapid tissue recovery.