Western drywood termite

Taxonomic position: Kalotermes minor belongs to the order Isoptera and the family Kalotermitidae. Unlike subterranean termites, this species does not require contact with the soil to survive, as it obtains all necessary moisture from the wood in which it lives and feeds.

Host plants and damage targets: This pest attacks both living trees and seasoned wood. In arboriculture, it often targets stressed or dying trees. However, its economic significance is most notable in forestry and urban areas, where it destroys wooden structures, fencing, timber piles, and outdoor landscape features.

Biology and life cycle: The lifecycle includes egg, nymph, and adult stages. Colonies consist of various castes, including reproductives, soldiers, and nymphs that act as workers. The colonies grow slowly and can remain undetected for years within the wood. Infestation typically begins when winged alates mate and locate a suitable crevice in the wood to start a new colony.

Nature of damage and pest status: Termites excavate large, smooth galleries within the wood, leaving behind pellets of frass (fecal matter) that often accumulate beneath infested areas. This hidden damage compromises the structural integrity of timber, often leading to total collapse if left untreated for an extended period.

Protection measures: Management of this pest focuses on exclusion and localized treatment:

• Routine inspection of all wooden structures and tree limbs for signs of entry holes.
• Utilizing professional structural fumigation for severe infestations.
• Applying borate-based wood preservatives to treat and prevent future attacks.
• Removing and destroying infested timber or pruned branches to disrupt the termite life cycle.