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Vine weevil, Otiorhynchus sulcatus. |
The damage is done mostly by the larvae which live in the soil or container compost and eat the roots of plants. When they have finished the roots, they move into the corms and stems. Meanwhile the entire plant above ground wilts and dies.
The Vine weevil is actually a flightless beetle of the Curculionidae family. The elytra, the characteristic modified forewings that act as protective covers of most beetles, have become fused to form a protective, grooved black or dark grey shell. A population of vine weevils is always entirely female and reproduction is parthenogenic, so a single female can quickly establish a new population. No males have ever been found.