
Community identification
Black Vine Weevil
Otiorhynchus sulcatus
- Order & Family
- Order: Coleoptera; Family: Curculionidae
- Size
- 8 to 11 mm (approximately 0.3 to 0.4 inches)
Natural Habitat
Found in gardens, nurseries, and greenhouses; often wanders into homes during the night or seeking moisture.
Diet & Feeding
Adults feed on the leaves of over 100 different plant species (including yews and rhododendrons); larvae feed on plant roots.
Behavior Patterns
They are nocturnal, flightless, and reproduce through parthenogenesis (all individuals are female). They typically hide in soil or mulch during the day.
Risks & Benefits
They are a significant agricultural and horticultural pest because the larvae can kill plants by girdling the roots. They are harmless to humans and pets, but can be a nuisance indoors.