Passalidae
Systematic position: The family Passalidae (bess beetles) belongs to the order Coleoptera. These beetles are primarily found in decaying wood within tropical and temperate forests, where they act as essential decomposers in the ecosystem.
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Passalidae
Host plants: Passalidae generally target decaying hardwoods, fallen logs, and stumps. While they typically avoid healthy, vigorously growing trees, they can become a concern in environments with a high density of damaged wood or in wood storage facilities.
Biology and life cycle: The life cycle of Passalidae is unique due to their subsocial behavior. Adults and larvae live together in tunnels carved into wood. Parents actively participate in feeding their offspring by chewing wood into a digestible pulp, ensuring the survival of the larvae within the gallery.
Damage character: The damage is caused by the boring activity of both adults and larvae.
- Destruction of internal wood structure.
- Loss of structural integrity in timber.
- Increased susceptibility to secondary fungal infections.
- Degradation of wood quality in forest areas.
Control measures: Management of Passalidae relies on sanitation practices. Removing old stumps, clearing fallen logs, and ensuring proper storage of wood can reduce the risk of infestation. Applying chemical insecticides or wood preservatives to vulnerable timber can also serve as an effective preventative measure against colonization.