Otiorhynchus sulcatus

Vine weevil

Description

8.0-10 mm long, lowland beetle. It is a known pest of cultivated plants, especially grape-vines (Vitis vinifera) and garden and container potted plants in most temperate parts of the world. Vine weevils are parthenogenetic (only females, reproduction without males) and only reproduce once a year. The female lays eggs on the plant or soil surface. Larvae hatch after several days and the larvae burrow into the soil. The adults feed on leaves and cause a noticeable "C-shaped" leaf notching on rhododendron leaves, but the real damage is caused by its larvae which damage the roots. It decreases plant development and production. Many plant species die, when attacked by vine weevil larvae. Within the genus Otiorhynchus at least two other species are important pests of rhododendrons in Central Europe. They are the clay-coloured weevil (O. singularis) and the strawberry weevil (O. ovatus).

Symptom

The adults feed on leaves and cause a noticeable C-shaped leaf notching on rhododendron leaves, but the real damage is caused by its larvae, which very seriously damage the roots.

Tree Species: Holly, Lilac, Rhododendron, Privet

Part of a plant- attacked: Roots, Leaf / Needle

Pest significance: Harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes