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Insect Identification

Black Vine Weevil - (Otiorrhynchus sulcatus)

Authored By Staff Writer | Last Updated: 3/15/2014

The Black Vine Weevil will eat most any plant, decimate a greenhouse and evade detection while doing so.

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Pic of the Black Vine Weevil
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The Black Vine Weevil is a known pest to an expansive variety of plants and usually feeds at night. Leaves are chewed away, leaving gardeners and farmers to wonder what happened the next morning.

Weevils are a type of beetle and this particular weevil is a member of the family Curculionidae, the largest family of insects to date. The Black Vine Weevil actually hails from Europe and is believed to have made its way to North America sometime in the mid-to-late 19 century.

The 'nose' of the weevil is called a snout and it curves downward in front of the face, somewhat like an anteater. They are small beetles and nocturnal feeders, making it difficult at first to identify them as culprits in plant destruction.

Infestations are most common in large-scale perennial plant growing facilities. Occasionally home gardeners find container plants victims to grubs.

Adult Black Vine Weevils seem to prefer eating rhododendrons and yews, but have no problem eating their way through hundreds of plants that are in front of them. Their grubs (offspring) will also destroy plants from underground as they eat away at roots and stems until the plant dies.

Females bore holes into stems or seeds to lay eggs in the summer. One female can lay hundreds of eggs so infestations can come about rapidly. Grubs emerge and live underground until maturity.

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Category: Beetle
Common name: Black Vine Weevil
Scientific Name: Otiorrhynchus sulcatus

Taxonomy:
  Kingdom: Animalia
   Phylum: Arthropoda
    Class: Insecta
     Order: Coleoptera
      Family: Curculionidae
       Genus: Otiorrhynchus
        Species: sulcatus

Adult Size (Length): 3mm to 7mm (0.12in to 0.28in) COMPARE

Identifying Colors: black, red

General Description: snout, beak, curve, trunk, elephant, anteater, harmful, pest


North American Reach (Though Not Limited To*): Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming; Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Nova Scotia; Ontario; Prince Edward Island; Quebec; Saskatchewan


* Keep in mind that insect reach is not governed by lines on a map and therefore may appear in areas/regions/states beyond those listed above.


NOTE: Material presented throughout this website is for entertainment value and should not to be construed as usable for scientific research or medical advice (insect bites, etc...). Please consult licensed, degreed professionals for such information. Email corrections / Comments to InsectIdentification at Gmail dot com.
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