Anthonomus rubi

Pronunciation

How to pronounce Anthonomus rubi: //ˌænθəˈnoʊməs ˈruːbaɪ//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Summary

Anthonomus rubi, also known as the strawberry-blossom weevil, is a significant pest primarily affecting strawberry and raspberry crops. It is native to Europe and has been introduced to the Pacific Northwest.

Physical Characteristics

Adults are 2–4 mm (0.079–0.157 in) long and dull black, covered with a fine grey pubescence. The larvae are 3–3.5 mm (0.12–0.14 in) long, curved, and white with a brown head.

Identification Tips

Look for dull black adults covered with grey pubescence and larvae which are curved and white with a brown head.

Habitat

Found in areas where strawberry and raspberry plants grow, particularly in regions with a temperate climate typical of Europe and western Asia.

Distribution

Adventive to the Pacific Northwest (PNW) of North America, originally native to Europe and western Asia.

Diet

Feeds on foliage of strawberry (Fragaria × ananassa) and raspberry (Rubus idaeus).

Life Cycle

Females lay eggs inside unopened flower buds, one egg per bud. Larvae develop inside the severed buds, feeding on the wilting tissue.

Reproduction

Eggs are laid inside flower buds; larvae emerge and feed on the plant tissue after hatching.

Ecosystem Role

Considered an important pest of strawberries and raspberries, affecting agricultural yield.

Economic Impact

Responsible for up to 80% loss of strawberry crops in Europe.

Collecting Methods

• Visual inspection of plants
• Pheromone traps

Preservation Methods

• Ethanol preservation
• Drying specimens

Similar Taxa

• Anthonomus signatus (Strawberry bud weevil)

Misconceptions

Some may confuse it with similar weevil species; however, its specific size and coloration are distinctive.

Tags

• insect
• pest
• weevil
• Anthonomus rubi
• strawberry pest