White-spotted rose beetle

The white-spotted rose beetle (Oxythyrea funesta) is a significant agricultural and horticultural pest belonging to the order Coleoptera and the family Scarabaeidae. This beetle is highly destructive during the flowering season, as it feeds on the floral parts of a wide range of fruit trees, vegetables, and ornamental plants.

The biology of the pest is defined by its early emergence in spring, synchronized with the blooming period of various host plants. Adults are active, diurnal fliers that aggregate on flowers in search of nectar and pollen. Their rapid reproduction and mobility make them a formidable threat to agricultural production in many regions.

The life cycle encompasses four distinct stages: egg, larva, pupa, and adult. The larval stage develops underground, where they primarily feed on decaying organic matter and roots. Once they reach the adult stage, they emerge from the soil to congregate on flowers, completing the cycle that typically spans one year under temperate conditions.

Damage caused by Oxythyrea funesta is manifested through the consumption of petals, stamens, and pistils. This leads to the destruction of the reproductive organs, preventing fruit set and resulting in significant economic losses. Because the adults are so aggressive in their feeding habits, entire fields or orchard sections can be devastated if not monitored correctly.

Integrated pest management strategies for the white-spotted rose beetle include:

• Deploying blue-colored traps, which are highly attractive to this specific species.
• Hand-picking adults during the early morning hours when they are less active due to lower temperatures.
• Applying specific insecticides targeting adults during the peak of their activity, while avoiding harm to pollinators.
• Soil tillage to disrupt larval development in the topsoil layers.