Southern subterranean termite

The Coptotermes acinaciformis is a major pest belonging to the order Isoptera, family Rhinotermitidae. It is widely recognized as the most destructive termite species in Australia, causing significant damage to both commercial timber plantations and residential properties due to its aggressive feeding habits.

This termite primarily attacks a wide range of woody plants, including various species of Eucalyptus and fruit-bearing trees. By targeting the heartwood, the pests weaken the structural integrity of the plant, often leading to total collapse and death of mature trees within a relatively short period.

The biology of this species is centered around massive, highly organized subterranean colonies. These termites possess a sophisticated caste system that allows them to maintain complex networks of tunnels. They remain hidden from view, making detection difficult until significant damage has already occurred.

The primary damage occurs in the form of hollowing out the internal structure of trunks and branches. They leave the thin outer layer of bark intact, which acts as a camouflage for the massive destruction happening within. This behavior makes it challenging for farmers to notice the infestation until it reaches a critical stage.

Integrated pest management (IPM) is essential for effective control.

• Installation of soil-applied chemical barriers.
• Usage of baiting systems containing chitin synthesis inhibitors.
• Regular inspection and monitoring of trees and structural wood.
• Removing debris and wood scraps from the vicinity of protected areas.

Effective defense involves continuous monitoring and the strategic application of slow-acting toxicants. These chemicals are returned to the central nest by worker termites, ensuring the elimination of the queen and the subsequent collapse of the entire colony population.