Chelisoches

The genus Chelisoches belongs to the order Dermaptera, commonly known as earwigs, and the family Chelisochidae. These insects are distinguished by their prominent abdominal cerci. The species Chelisoches morio is the most recognized member, frequently encountered in tropical and subtropical regions where it acts as a foliage-feeding pest.

This pest affects a wide range of agricultural and horticultural crops, including bananas, coffee, cacao, sugar cane, and ornamental flowers. They prefer habitats with high humidity, often residing within leaf axils, rolled leaves, or dense plant canopies, which provide both shelter and a consistent food source.

The life cycle involves incomplete metamorphosis. A notable biological trait is maternal care, where the female protects the eggs and early instars. These insects are strictly nocturnal, spending daylight hours hidden in crevices or curled leaves, which often allows populations to reach significant levels before they are detected by growers.

Damage caused by Chelisoches involves irregular feeding holes in leaves, flowers, and tender shoots. This defoliation can stunt plant growth and reduce the market value of produce. Furthermore, the feeding wounds provide entry points for secondary bacterial and fungal infections that can further damage the plant's health.

Effective management requires an integrated approach. Cultural controls include sanitation practices such as clearing debris and pruning to reduce humidity. Physical barriers like sticky traps or traps using baits can reduce local populations. In severe infestations, registered insecticides applied during the night, when the insects are active, prove the most effective for control.