Brown centipede

Systematic position: The brown centipede (Lithobius forficatus) belongs to the phylum Arthropoda, class Chilopoda, order Lithobiomorpha, and family Lithobiidae. It is a widespread species commonly found in leaf litter, soil, and under stones across the Northern Hemisphere.

Biology and life cycle: The brown centipede is a nocturnal predator with a reddish-brown, elongated body reaching up to 30 mm in length. They thrive in damp, dark environments. Females lay eggs individually in the soil. Development is anamorphic, meaning the larvae hatch with fewer segments and pairs of legs than adults, gradually gaining them through successive molts during their life cycle.

Damage characteristics: While primarily carnivorous, feeding on various small soil invertebrates, L. forficatus can behave as a pest in intensive cultivation environments. When their natural prey is scarce, they may feed on tender plant tissues, including seedling roots, young shoots, and low-hanging fruits, causing noticeable surface damage and deep feeding holes.

Economic importance: The damage caused by brown centipedes is often underestimated. By creating entry wounds in roots and stems, they facilitate the secondary invasion of soil-borne pathogens, such as fungi and bacteria. This frequently leads to root rot or wilting of seedlings in greenhouses, which significantly reduces plant vigor and overall yield potential for vegetable crops.

Protection measures: Managing the brown centipede focuses on environmental modification and cultural practices to discourage their presence:

• Maintaining a clean garden by removing excessive decaying organic matter, such as old mulch or lumber piles.
• Ensuring proper soil drainage to reduce the humidity levels that attract centipedes.
• Implementing frequent soil cultivation to disturb their habitats and expose them to natural predators.
• Avoiding over-irrigation in greenhouses, especially near the plant bases.
• Using appropriate barrier methods or biological soil treatments to protect vulnerable seedling stages during the initial growth period.