Shaggy rose beetle

The Shaggy rose beetle (Tropinota hirta) is a destructive pest belonging to the Scarabaeidae family and the order Coleoptera. This beetle is highly notorious among gardeners and farmers due to its voracious appetite for flowers and young buds during the spring season.

The adult beetle is approximately 10–12 mm long, characterized by a matte black body with white spots on the elytra and dense grey hairs, which give it a "shaggy" appearance. These insects are strong flyers and prefer warm, sunny days to feed and find mates.

The biological life cycle of this pest typically involves overwintering in the soil as adults. Once soil temperatures rise in early spring, they emerge and migrate to host plants. Their emergence cycle perfectly aligns with the flowering period of various fruit trees and ornamental shrubs.

The main economic impact comes from the adults feeding on the reproductive parts of flowers, including stamens, pistils, and petals. This activity prevents pollination and fruit set, which can lead to severe losses in yield for crops such as apples, pears, cherries, strawberries, and grapes.

Control strategies require an integrated approach to minimize impact. Trapping using blue containers filled with water or pheromone-based lures is highly recommended. Because mass emergence often coincides with peak pollination, chemical treatments must be carefully timed to avoid harming honeybees and other beneficial insects.

• Setting up blue bucket traps with attractants
• Manual collection of beetles in the early morning
• Tilling the soil to expose overwintering larvae
• Applying insecticides before the flowering phase
• Monitoring pest population levels in early spring