Acerentomon doderoi

Acerentomon doderoi belongs to the order Protura, family Acerentomidae. These are microscopic arthropods living exclusively in soil environments, completely lacking eyes and antennae.

Visually, they resemble insect larvae but possess a specific structure of limbs and mouthparts. Adults reach only 1–2 millimeters in length and have a pale body.

Their development occurs through anamorphosis, where the number of abdominal segments increases with each molt. This is a primitive group of organisms, extremely sensitive to soil desiccation.

The primary habitat of the species is the deep layers of litter and the upper horizons of the humus soil layer. They prefer moist, organic-rich substrates with neutral or slightly acidic pH.

Identification of this species in the field is impossible without laboratory methods such as Berlese funnel extraction followed by microscopic analysis.

Despite belonging to soil mesofauna, the impact of Acerentomon doderoi on cultivated plants is considered indirect.

These organisms mainly feed on fungal hyphae and decomposing organic matter, but at high population densities, they may damage the young root hairs of agricultural crops.

The greatest damage is observed in nurseries and seedling production, where root system damage triggers secondary infections by pathogenic fungi.

Crops suffering from disturbed root microstructure show stunted growth, reduced photosynthesis intensity, and weakened immunity to environmental stressors.

In industrial agriculture, their role is often considered in the context of general disruption of mycorrhiza, which is essential for the nutrient uptake of many vegetable and cereal crops.

The pest's activity is closely tied to the soil's hydrothermal regime, with population peaks observed in spring and autumn.

During periods of drought or deep soil freezing, Acerentomon doderoi retreats to deeper horizons, suspending activity and reproduction.

The most favorable period for population development is a stable soil temperature between +12°C and +18°C with moderate moisture.

In greenhouses, the pest can remain active year-round if there is a sufficient amount of organic residues in the substrate.

Life cycle speed depends on the accumulation of active temperatures in the soil profile, making the spring period critical for population density control.

Direct signs of infestation by this species are often masked by general symptoms of soil fatigue or root rot infection.

• Stunted seedling growth at early vegetation stages.
• Presence of microscopic necroses on the tips of thin roots.
• Reduced efficiency of mineral fertilizer uptake.
• Increased susceptibility of plants to Fusarium and other soil-borne pathogens.
• Wilted plants despite adequate soil moisture.

Control of Acerentomon doderoi is based on agrotechnical methods aimed at optimizing the soil environment.

An effective way to reduce the population is to practice proper crop rotation, avoiding the accumulation of plant residues that attract the pest.

Regular soil cultivation and aeration help modify living conditions, making them unfavorable for proturans.

The application of preparations based on entomopathogenic fungi helps regulate soil pest populations without disrupting the overall soil microbiome.

In greenhouses, thermal sterilization of substrates or the use of specialized soil insecticides is recommended when threshold population values are reached.