Shaggy rose beetle

The shaggy rose beetle (Tropinota hirta) is a member of the Coleoptera order and the Scarabaeidae family. It is a highly destructive pest known for its ability to damage blossoms during the early spring, posing a significant threat to orchards and ornamental gardens.

The pest has a wide range of host plants, showing a strong preference for blooming fruit trees. Common victims include domestic apple trees, pears, cherries, and plums. By consuming the petals, stamens, and pistils, the beetles prevent pollination and fruit set, which leads to massive crop losses in the affected areas.

The life cycle of Tropinota hirta is characterized by overwintering in the soil as an adult beetle. In the spring, when temperatures rise, they emerge to feed on pollen and floral organs. After the blooming season, they deposit eggs in the soil, where the larvae live and feed on decomposing plant matter, completing their development before pupating.

The economic impact of the shaggy rose beetle is profound, as the adult feeding stage coincides exactly with the peak blossoming of fruit crops. A massive outbreak can lead to the total loss of flowers within a few days, leaving trees barren for the rest of the season and destroying the prospects of a harvest.

Control measures require a multi-faceted approach. Monitoring population density using blue-colored traps (which attract these insects) is highly effective. Cultivation of the soil under the tree crowns helps destroy larvae and pupae. During the blooming period, chemical control must be performed with extreme caution to protect pollinators, favoring biological alternatives whenever possible.