Shore earwig

The shore earwig (Nala livipides) is an insect belonging to the order Dermaptera and the family Forficulidae. This species is widely distributed in warmer regions and is commonly found in proximity to water bodies, in moist soils, and in fields utilizing intensive irrigation practices.

The range of crops affected by this pest is extensive. Earwigs are omnivorous and feed on both decomposing plant matter and the succulent tissues of young agricultural plants. Nala livipides causes significant damage to vegetable crops, tobacco, cotton, and young cereal seedlings, particularly when high humidity levels are present in the soil profile.

The biology and lifecycle of this insect are closely associated with the conditions of the topsoil layer. Females lay their eggs in shallow soil depressions or beneath plant debris, exhibiting maternal care for the offspring. The development follows an incomplete metamorphosis process, where nymphs resemble adults but lack functional reproductive organs and undergo several molting stages before reaching maturity.

Damage patterns typically involve the gnawing of leaf tissues, stems, and delicate roots of emerging plants. These pests are primarily nocturnal, seeking refuge during the day. A high population density of Nala livipides can lead to sparse seedling stands, which significantly reduces the crop density and negatively impacts overall agricultural yield.

Protection strategies involve a combination of agrotechnical and chemical measures. It is essential to implement crop rotation and perform deep tillage, which disrupts the habitats and reduces the population of the pest. Maintaining clean fields by removing weeds and plant debris is also crucial. When economic damage thresholds are exceeded, the use of registered insecticides is recommended for targeted plant protection.