Coffee berry borer

The Hypothenemus pusillus is a significant pest belonging to the order Coleoptera and the family Curculionidae (subfamily Scolytinae). Known for its cryptic behavior, this small beetle primarily targets the reproductive parts of tropical plants, posing a constant challenge for agricultural production.

This species is widely recognized for its impact on coffee plantations, although it can affect other crops with fleshy or hard seeds. Its ability to penetrate deep into the host fruit allows it to thrive in environments that are protected from traditional contact pesticides.

The biology of this beetle is strictly tied to the host fruit. A mated female bores into the berry and creates galleries where she lays eggs. The larvae develop inside, consuming the endosperm. Given the tropical climate, the beetle can complete multiple generations in a single year, leading to exponential population growth.

The damage is primarily economic, as the larvae destroy the bean, resulting in significant quality reduction and yield loss. Furthermore, the boreholes created by the adults facilitate secondary infections by pathogens, further degrading the health and commercial value of the crop.

Integrated pest management strategies include:

• Rigorous sanitation by collecting and destroying infested berries.
• Deployment of trap crops or pheromone-based monitoring systems.
• Biological control using fungi such as Beauveria bassiana.
• Strategic application of insecticides when adult beetles are actively migrating.