Black vine borer

The black vine borer (Paropta l-nigrum) is a destructive moth species belonging to the Cossidae family, commonly known as carpenter moths. It is recognized as a significant pest of various woody plants, particularly in viticulture and fruit tree cultivation.

Taxonomically, this pest falls under the order Lepidoptera. Its life cycle involves an egg-laying stage on bark, followed by larval development inside the woody parts of the plant, where the larvae feed on internal tissues, protected from most environmental stressors.

This species primarily targets grapevines and several fruit-bearing trees such as apricots, peaches, and other stone fruits. The larvae are borers, meaning they create deep tunnels within the stems and trunks, which can cause significant structural damage to the host plant.

Damage is often characterized by stunted growth, the sudden wilting of branches, and the presence of frass (larval excrement) pushed out from entry holes in the bark. If left unmanaged, the cumulative damage can lead to the death of major branches or the entire plant.

Effective management strategies include integrated pest management (IPM) practices, such as the pruning and destruction of infested wood, the use of pheromone traps for monitoring flight periods, and targeted applications of systemic insecticides to interrupt the larval life cycle.

• Regular inspection for entry holes and frass.
• Sanitary pruning of infested shoots and branches.
• Application of systemic insecticides during peak moth activity.