Cratopus angustatus

Cratopus angustatus is a member of the Curculionidae family within the order Coleoptera. As a weevil species, it is known for its role as a significant agricultural pest, particularly in the tropical environments of islands in the Indian Ocean region, where it targets various economically important botanical species.

The host range of this beetle is diverse, primarily focusing on crops such as vanilla, coffee, and citrus plants. Adults feed on foliage, often preferring the tender tissues of young shoots, which can hinder the structural development and overall vigor of the host plant in nursery and field conditions.

Regarding its biology, the insect follows a complete metamorphosis cycle. The larval stage is critical, as it occurs within the soil environment. These larvae feed on root systems, causing cumulative damage that often goes unnoticed until the host plant exhibits severe signs of wilting or nutrient deficiency.

The damage caused by adults is characterized by irregular marginal leaf feeding. This aesthetic and physiological damage reduces the photosynthetic capacity of the plant. If left unmanaged, high infestations can lead to substantial yield losses, especially in high-value cash crops where leaf surface integrity is essential.

Integrated Pest Management (IPM) is the recommended strategy for control. This involves the application of targeted insecticides during the beetle's peak activity periods and cultural practices such as weeding and soil management to disrupt larval life cycles. Regular monitoring is essential to ensure that chemical interventions are timed correctly for maximum efficiency.