Root cicada

Systematic position: The root cicada Myndus radicis belongs to the order Hemiptera and the family Cixiidae. This insect is recognized as a significant pest in agricultural settings due to its specialized feeding habits involving the subterranean parts of host plants, which often leads to late detection of infestations.

Crops affected: The pest primarily targets vegetable crops cultivated in protected environments, such as tomatoes, cucumbers, and lettuce. Additionally, it poses a threat to various ornamental plants, as its larvae thrive in the root zones of plants grown in potting media or greenhouse soils.

Biology and life cycle: The entire life cycle of this species occurs within the soil profile. Adults lay eggs near the base of the plant stem, and the developing nymphs remain underground. These nymphs possess waxy secretions and actively feed on root sap. The duration of the life cycle can span several months, allowing the population to build up silently over time.

Nature of damage: By feeding on the root system, the larvae disrupt the vascular flow of water and essential nutrients to the plant canopy. Typical symptoms include stunted growth, leaf chlorosis, and wilting during periods of high transpiration. Secondary infections by soil-borne fungi are common consequences of the physical damage caused by the cicada nymphs.

Control measures: Managing Myndus radicis requires a multi-faceted strategy focused on prevention and early intervention.

• Sanitation of greenhouses and heat treatment of soil or growing media.
• Monitoring using sticky traps to detect adult emergence.
• Application of entomopathogenic fungi as a biological control agent.
• Application of systemic insecticides via irrigation systems strictly according to local regulations.