Pest

Common termite

Termes vulgaris

Description

How to identify

The Common termite (Termes vulgaris) is a social insect belonging to the order Isoptera, family Termitidae. These insects live in complex colonies characterized by a division of labor among distinct castes: workers, soldiers, and reproductives.

Worker termites are soft-bodied, pale, and wingless. They are blind and spend their entire lives within the colony or in covered tunnels, performing the tasks of gathering food and maintaining the nest.

Soldiers are specialized for colony defense and possess enlarged, sclerotized, brownish heads with powerful mandibles. They are highly aggressive when the nest is disturbed or breached by predators like ants.

Reproductive individuals are winged and emerge in large numbers during swarming events. After flight, they shed their wings, pair off, and establish new colonies if conditions are favorable.

The colony structure is essential for survival, as termites require high humidity and protected environments to prevent desiccation, which occurs rapidly when they are exposed to dry air or light.

What it damages

Common termites cause significant damage by consuming cellulose. They primarily attack wood, roots of live trees, shrubs, and even agricultural crops, leading to severe plant stress and mortality.

In orchards and plantations, termites hollow out the internal tissues of tree trunks and roots. This compromises the plant's vascular system, leading to stunted growth, reduced yields, and physical instability of the tree.

Agricultural infrastructure is also at high risk. Termites damage wooden trellis posts, greenhouse frames, and storage facilities, often going unnoticed until the structure loses its integrity.

During extreme drought, when natural cellulose sources are scarce, termites may forage more aggressively, attacking living crops such as grain stalks and roots, which can lead to total crop failure.

The economic impact is twofold: the loss of valuable woody plants and the cost of repairing or replacing infrastructure damaged by these persistent wood-destroying insects.

Signs of infestation

The most distinctive sign of a termite presence is the creation of mud tubes or tunnels along tree trunks or building foundations. These tubes allow them to move undetected while maintaining high humidity.

Small mounds of granular fecal material or fine wood shavings near the base of a plant or wood structure are clear indicators that termites are actively digesting cellulose nearby.

Symptoms in plants include yellowing of foliage, sudden wilting, and the appearance of hollowed-out bark sections. In severe cases, the tree may tilt or fall over due to extensive root damage.

Swarmer sightings or piles of discarded wings around window frames or at the base of trees during the humid season strongly suggest that a mature colony is established in the immediate vicinity.

Hollow sounds when tapping tree trunks or structural timbers indicate that internal wood has been replaced by termite galleries and mud packed by the colony.

Control measures

Preventative measures are critical for termite management. This includes removing dead wood, stumps, and excessive vegetation from the field to reduce attractive nesting sites.

Applying soil-applied termiticides around tree root zones and building perimeters creates a defensive barrier that prevents termites from reaching the target area.

Baiting systems are highly effective for long-term control. Termites consume the poisoned bait and distribute it throughout the colony through social interaction (trophallaxis), eventually killing the queen and the entire nest.

Biological control using entomopathogenic fungi is gaining traction as a sustainable alternative, helping to suppress termite populations without relying heavily on synthetic chemicals.

  • Regular monitoring of all wooden structures and tree bases.
  • Using pressure-treated or naturally termite-resistant wood for construction.
  • Managing moisture levels around structures to discourage colony establishment.
  • Professional inspection and extermination services for severe infestations.
Biology

Taxonomy

Latin name
Termes vulgaris
Family
Termitidae
EPPO code
TERMVU
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