Dolichorhynchus lamelliferus

Dolichorhynchus lamelliferus is a species of plant-parasitic nematode belonging to the family Telotylenchidae. As an ectoparasite, it inhabits the soil surrounding plant roots, using its specialized stylet to pierce root cells and extract cytoplasm, which compromises the root system's integrity.

This pest is known to affect various agricultural crops, including cereals, tubers, and vegetables. Its presence in the field can be particularly devastating during the early stages of plant growth, as it directly attacks the emerging root hairs and lateral roots, limiting the plant's ability to uptake water and nutrients.

The life cycle of Dolichorhynchus lamelliferus consists of several juvenile stages and the adult stage. The nematodes are highly resilient and capable of surviving in the soil without host plants for extended periods. Their population dynamics are strongly influenced by soil temperature, moisture levels, and the availability of preferred host plant roots.

Symptoms of infestation often appear as stunted growth, chlorosis, and wilting during periods of heat stress. Because the damage occurs underground, it is often misidentified as nutrient deficiency or drought stress. The economic impact includes significant yield reductions and lower produce quality, making early detection vital.

• Crop rotation with non-host plant species.
• Use of certified, nematode-free planting material.
• Application of soil amendments to improve soil health.
• Targeted use of nematicides based on soil test results.
• Effective weed control to eliminate alternative hosts.

Management strategies focus on integrated pest management (IPM) practices. Farmers are advised to conduct regular soil sampling to monitor nematode density. By combining cultural practices, such as proper fallow management and rotation, with chemical controls only when necessary, growers can successfully mitigate the damage caused by this nematode.