Pagiophloeus cribripennis weevil

Taxonomically, this species belongs to the order Coleoptera and the family Curculionidae. It is a specialized pest primarily found in tropical regions, where it targets specific tree species, causing significant stress to both wild populations and agricultural crops.

The primary hosts of this weevil include members of the Fabaceae family and other tropical woody species. The insect demonstrates a strong host preference, relying on the tissues of these plants for adult feeding and larval development throughout its life cycle.

The biology and life cycle of the weevil consist of four distinct stages: egg, larva, pupa, and adult. Adult weevils deposit eggs into the bark or wood, where the larvae later hatch and bore tunnels into the stems or branches, disrupting the vascular system of the host plant.

Damage symptoms are primarily caused by larval tunneling, which compromises the structural integrity of the plant. This activity often leads to crown dieback, reduced vigor, significant yield losses, and, in severe infestations, the death of the entire plant due to impaired nutrient transport.

Management and control strategies involve an integrated approach:

• Regular field scouting to detect early signs of bark damage.
• Sanitary pruning and destruction of infested branches to limit pest spread.
• Application of systemic insecticides during the peak adult activity periods.
• Implementation of cultural practices that enhance plant health and vigor.