Reticulated fruit fly

Systematic position. The reticulated fruit fly (Campiglossa reticulata) belongs to the order Diptera and the family Tephritidae. This species is a specialized herbivore associated primarily with plants of the Asteraceae family. Its distribution is largely dictated by the presence of host plants in both natural ecosystems and cultivated agricultural lands.

Affected crops and damage. The pest primarily targets members of the Asteraceae family. In agricultural settings, it can infest sunflower crops, various lettuce varieties, and ornamental Asteraceae species. The economic impact is linked to the larval stage, which feeds internally within the flowers or flower heads, often going unnoticed until significant damage has occurred.

Biology and life cycle. The life cycle comprises egg, larval, pupal, and adult stages. Females typically oviposit into the buds or developing flower heads of the host plant. Upon hatching, the larvae penetrate the internal tissues to feed on developing seeds and the receptacle. The number of generations per year depends on the climatic conditions of the specific geographic area.

Nature of damage. Larvae are the primary cause of damage, as they consume the internal structure of the flower heads. This results in deformed flowers, stunted seed development, and significant yield loss. Additionally, the feeding activity often leaves plants susceptible to secondary infections caused by fungi or bacteria, which can further reduce the quality of the harvest.

Control measures. Integrated pest management (IPM) is essential for controlling Campiglossa reticulata. Key strategies include:

• Rigorous weed control to eliminate wild host plants.
• Crop rotation to break the pest's cycle.
• Deep plowing in autumn to bury and kill pupae.
• Targeted insecticide applications during the adult flight period.