Peridontopyge millipede

The millipede genus Peridontopyge belongs to the class Diplopoda and the family Odontopygidae. These arthropods are known soil-dwelling pests that thrive in tropical and subtropical climates, occasionally causing significant economic losses by attacking the subterranean parts of various agricultural crops.

These pests pose a particular threat to germinating seeds, tender seedlings, and root crops such as groundnuts and sweet potatoes. By feeding on living plant tissues, Peridontopyge can cause uneven crop emergence and severely impact stand establishment, especially in fields with high moisture content and high levels of organic matter.

The biology of these millipedes is driven by humidity and soil structure. They typically reside in the soil profile, moving upward toward the surface to feed during moist, humid periods. The life cycle involves multiple stages of growth, where both juveniles and adults exhibit similar feeding behaviors, consuming both decaying organic material and healthy plant roots.

The damage caused by these pests includes the stripping of the root epidermis and the creation of cavities in tubers and seeds. Such feeding activity disrupts the plant's nutrient uptake and water absorption, leading to stunted growth. Furthermore, the wounds created by the millipedes facilitate secondary infections by soil-borne pathogens, including fungi and bacteria.

Effective management strategies focus on both cultural and chemical control. Maintaining proper field drainage and practicing crop rotation can significantly reduce the local population of millipedes. In severe cases, the use of systemic insecticidal seed treatments is recommended to protect the crop during the critical seedling stage. Maintaining soil health and optimal planting times are essential for minimizing damage.