Melittomma

Melittomma is a genus of wood-boring beetles belonging to the family Lymexylidae within the order Coleoptera. These insects are recognized as significant pests in various forest and plantation environments, specifically targeting the internal wood tissues of host trees during their larval stage.

Common host plants for this pest include various species of palms, particularly coconut trees, especially when the plants are weakened by environmental stress or previous mechanical damage. The beetle acts as a technical pest, significantly reducing the economic value of the wood and the vitality of the plant.

The biological cycle of Melittomma is characterized by its symbiotic relationship with fungi. Female beetles lay eggs in bark crevices, and the emerging larvae bore deep galleries into the tree. They graze on these galleries while cultivating fungal colonies, which aid in the decomposition of wood, providing necessary nutrients for the larvae.

The damage caused by Melittomma larvae is severe, as they compromise the structural integrity of the tree trunk. The extensive system of tunnels interrupts the flow of nutrients and water, leading to necrotic spots, branch dieback, and increased susceptibility to secondary infections by pathogenic bacteria and fungi.

• Regular phytosanitary inspection of plantation trees for entrance holes.
• Prompt removal and destruction of heavily infested trees to contain the spread.
• Application of specialized insecticidal treatments in early stages of infestation.
• Maintaining optimal tree vigor to reduce attractiveness to the beetles.