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Otiorhynchus sulcatus
''Otiorhynchus sulcatus'', commonly known as the black vine weevil or simply vine weevil, is native to Europe, but common in North America as well. It is a pest of many garden plants.
== Overview ==
The adult weevil is matte black with fused wing covers, and is unable to fly. It feeds at night on the outer edges of leaves, causing the leaves to have a notched margin. Broadleaved evergreen plants such as ''Camellia'', ''Rhododendron'', ''Euonymus'' and ''Bergenia'' are particularly prone to damage, although a wide range of different garden plants is susceptible to attack.
Female weevils have the ability to reproduce parthenogenetically 〔http://www.fruitdisease.co.uk/EntomologyResearchPage3.asp〕 with fertilisation of eggs required to produce males, though no males have been observed. This form of parthenogenesis is known as thelytoky. Grubs grow up to 1 cm in length, have a slightly curved, legless body, creamy-white in colour, with a tan-brown head. They live below the soil surface, and feed on roots and cambium at the base of the trunk. They cause most damage to herbaceous plants, particularly those growing in containers, where root growth is restricted. Severe infestations can result in complete root destruction and hence plant death.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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