Hungarian rose curculio

The Hungarian rose curculio (Rhynchites hungaricus) is a beetle species belonging to the family Rhynchitidae within the order Coleoptera. It is a well-known pest that specifically targets plants in the Rosaceae family, causing aesthetic and biological damage to rose bushes and wild roses.

The pest primarily affects cultivated roses and dog roses. Adults and larvae focus their feeding activity on the reproductive structures of the plant, specifically the flower buds, which are essential for the plant's seasonal development and flowering cycle.

Regarding its biological cycle, the beetles emerge in spring to feed on young plant tissue. Females perform oviposition by drilling into the developing buds to lay eggs. The larvae develop inside the bud, consuming the interior parts, which prevents the flower from blooming and leads to bud necrosis.

The damage caused by the Hungarian rose curculio is characterized by perforated leaves and severely damaged, withered, or malformed buds. The economic importance of this pest is high, particularly in nurseries and ornamental gardens where floral quality is paramount.

Effective management strategies combine chemical and cultural control. Key methods include:

• Physical removal of beetles by shaking them off branches onto catch-sheets early in the morning.
• Sanitation practices such as collecting and disposing of fallen or damaged buds to prevent larval maturation.
• Timed application of selective insecticides during the initial budding stage to prevent mass infestation.