Stali earwig

The Stali earwig (Euborellia stali) belongs to the order Dermaptera and the family Anisolabididae. This insect is a globally distributed pest found in warm climates, often causing significant problems in both greenhouses and open fields. Its nocturnal behavior and preference for moist, hidden habitats make it a challenging target for pest management.

This pest attacks a wide variety of agricultural crops. It is particularly notorious for damaging vegetable crops such as tomatoes, cucumbers, peppers, and potatoes. Furthermore, it often infests berries, including strawberries, by feeding on fruits resting on the soil surface, leading to direct crop loss and increased susceptibility to secondary infections.

The biological development of Euborellia stali follows an incomplete metamorphosis cycle. It passes through egg, nymph, and adult stages. Females exhibit maternal care, protecting egg batches in soil burrows or under plant debris. The species thrives in environments with high humidity and moderate temperatures, which allows it to maintain consistent population density throughout the growing season.

Feeding damage is characterized by deep, irregular holes in fruits, roots, and young shoots. Because the Stali earwig is primarily active at night, visible damage to the crop is often the first indicator of an infestation. The feeding sites create open wounds that become entry points for various pathogens, causing significant rotting of the vegetable produce.

Integrated pest management (IPM) is essential for controlling this species. Recommended strategies include:

• Regular soil cultivation and weeding to destroy potential shelters.
• Removal of plant debris from the field or greenhouse.
• Monitoring using trap shelters or baits to determine population levels.
• Application of targeted insecticides if the infestation exceeds economic thresholds.