Coffee fruit moth

Prophantis smaragdina is a significant agricultural pest belonging to the order Lepidoptera and the family Crambidae. This moth species is recognized for its detrimental impact on coffee cultivation, particularly within its native tropical habitats.

The primary host for this pest is the coffee plant (Coffea spp.). The larvae exhibit a strong preference for the reproductive structures of the plant, focusing their feeding activities on developing coffee berries and seeds, which directly results in economic losses for growers.

The biological cycle follows a typical holometabolous development, consisting of the egg, larval, pupal, and adult stages. The female moth deposits eggs on the surface of the fruit, and upon hatching, the larvae bore into the berry to feed. This feeding behavior makes the larvae protected from many external environmental factors during their most active growth phase.

Damage assessment reveals that infested berries often show premature shedding and decay. The larvae feed on the beans inside, rendering the crop commercially unviable. Furthermore, the entry holes created by the caterpillars facilitate the entry of secondary pathogens, including fungi, which further degrade the quality of the coffee beans.

Integrated pest management (IPM) is the most effective approach to mitigate the damage caused by Prophantis smaragdina. Effective strategies include:

• Continuous field scouting to monitor moth activity.
• Sanitation practices such as picking and destroying infested fruits.
• Biological control measures using natural predators or parasitoids.
• Targeted application of insecticides only when infestation thresholds are exceeded.