Millipedes
Millipedes (Julidae) belong to the order Julida and are recognized as significant soil pests in agriculture. While they often act as decomposers in nature, specific species can cause substantial damage to commercial crops when environmental conditions favor their rapid population growth.
What the section contains
Blue-banded millipede
Cylindroiulus caeruleocinctus
British millipede
Cylindroiulus britannicus
Cylindroiulus latestriatus
Cylindroiulus latestriatus
Cylindronotus
Cylindronotus
Green-necked darkling beetle
Cylindronotus viridicollis
London millipede
Cylindroiulus londinensis
Millipede
Cylindroiulus
Millipede
Iulus
Olmec millipede
Paraiulus olmecus
Ommatoiulus
Ommatoiulus
Paraiulus
Paraiulus
Portuguese millipede
Ommatoiulus moreleti
Red millipede
Ommatoiulus rutilans
Sand millipede
Ommatoiulus sabulosus
Millipedes
These pests affect a variety of plants, including potatoes, carrots, beets, strawberries, and germinating seeds of cereal crops. They feed by chewing roots, tubers, and young seedlings, creating holes and tunnels. This physical damage frequently allows secondary infections, such as rot-causing bacteria and fungi, to enter the plant tissues.
The biology of millipedes is closely linked to moisture levels. They thrive in damp, undisturbed soils rich in organic matter. Females lay clusters of eggs in the soil. Upon hatching, the larvae undergo multiple molts, gradually increasing their body segments until reaching maturity. Because they are sensitive to drying, they spend most of their life cycle underground or beneath decaying vegetation.
The economic impact of Julidae is high due to the reduction in both yield and storage quality of root crops. Heavily infested fields often show poor germination rates and stunted plant growth, leading to significant financial losses for producers, particularly in humid seasons or poorly drained areas.
Effective management strategies combine agricultural practices and chemical control. Key tactics include:
- Maintaining proper soil drainage to reduce humidity.
- Regular crop rotation to disrupt the pest's life cycle.
- Deep tillage to expose the pests to predators and desiccation.
- Using insecticidal soil treatments or treated seeds in high-risk areas.
Regular monitoring of soil populations is essential for effective prevention. By managing organic debris and ensuring optimal growing conditions, farmers can minimize the impact of millipedes and protect their crops throughout the growing season.