Pest · Hymenoptera

Trigona trinidadensis

Trigona trinidadensis

Description

How to identify

Trigona trinidadensis is a species of stingless bee belonging to the family Apidae. They are social insects known for their complex colony organization and resin-collecting behavior.

These bees are relatively small, with a dark-colored exoskeleton. They do not possess a functional stinger, relying on their numbers and mandibles for colony defense.

Their colonies are established in tree cavities or similar sheltered spaces, where they store food and rear brood in specially constructed wax pots.

While ecologically beneficial as pollinators, their habit of collecting resins and plant tissues can lead to significant issues in agricultural settings.

The caste system within the colony ensures efficient labor division, with workers primarily responsible for resource collection and nest maintenance.

What it damages

These bees primarily target young shoots, tender buds, and floral structures of various tropical crops, such as mango, citrus, and legumes.

The damage is caused when the bees scrape off the plant's surface tissues to collect sap, resin, and cellulose for building and lining their nest structures.

Stripping the bark or epidermis of young stems disrupts nutrient transport and weakens the plant, making it more susceptible to environmental stress.

Secondary infections occur frequently as the exposed plant tissues provide entry points for various bacterial and fungal pathogens that affect crop health.

The consumption or destruction of floral parts directly reduces fruit set, causing significant economic losses in commercial fruit production operations.

Signs of infestation

The most distinctive signs of infestation are ragged, scraped-off areas on young stems and branches where the plant epidermis has been removed.

Visually observing large numbers of small, dark, stingless bees actively swarming or congregating on specific trees is a key indicator of their presence.

The presence of sticky sap or exudates on the surface of branches following bee activity confirms recent damage to the plant's structural tissues.

Early abortion of buds and blossoms, leading to a noticeable drop in potential harvest, often suggests significant pressure from these insect colonies.

Discovery of entrance tubes to nests in hollow trunks or adjacent structures confirms the proximity of the colony causing the observed plant damage.

Control measures

Physical exclusion methods, such as utilizing fine-mesh netting on vulnerable young plants, are highly effective in preventing access and damage.

Implementing rigorous sanitation practices, including the removal of dead wood and severely damaged branches, helps to reduce the colony's motivation to forage.

Natural repellents, such as specific aromatic oils or deterrent sprays, can be applied to young growth to discourage bee visitation during critical growth stages.

Monitoring the density of colonies in the vicinity of the plantation allows for early intervention before the bee population causes systemic damage to the orchard.

  • Installing physical barriers like insect screens.
  • Pruning branches to maintain plant vigor.
  • Using non-toxic, repellent sprays for crop protection.
Biology

Taxonomy

Latin name
Trigona trinidadensis
Order
Hymenoptera
Family
Apidae
EPPO code
TRGOTR
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