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Large Black Slug, Black Slug (Arion ater)

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Order: Pulmonata
Family: Arionidae
Genus: Arion
Species: ater

Profile:

No positives
No neutrals
3 negatives

Regional...

This bug has been reportedly found in the following regions:

,
Stow, Ohio
Astoria, Oregon
Redmond, Washington

By kennedyh
Thumbnail #1 of Large Black Slug, Black Slug (Arion ater) by kennedyh

Member Notes:

RatingAuthorContent
Negative turbohavana On Sep 4, 2007, turbohavana from Redmond, WA wrote:

This bug is quite common in the Pacific Northwest and can be a bit of a pest. They're big time plant munchers. I remember growing up my mother would do everything she could to get rid of them, but they're everywhere.

A pesticide free way to get rid of them is to go out in the early evening before it gets dark and pour a small amount of salt on each one you see. Does the trick, but then you have a mess to clean up in the morning. If they're leaving your plants alone though, you might as well leave them be as they are probably beneficial to the garden.

Negative vanislandgirl On Oct 29, 2009, vanislandgirl from Ladysmith, BC wrote:

We have a great deal of them around our area. I try to control them in the early Spring, to get a head start on them. But it is a on going fight in the wet/damp areas. They are fine in the woods. But I kill all I find in my garden. Don't use any products because I have pets, feed birds and the garden snakes will eat them.

Negative hutchygirl On Sep 27, 2012, hutchygirl from Stow, OH
(Zone 5b) wrote:

DANGER ZONE 5: I have lived in same home, with same gardens, for over 10 years and I have never, until this week, seen these black slugs! Not only are they hideous, they are very difficult to remove from whatever they are stuck to and they not only demolished leafy plants, they completely halted the growth and blooming of my delphinium, petunias and coreopsis! I located several clung to what used to be buds on my plants...and they are not afraid of heights either! Several times, while searching for slugs or deadheading flowers, I would see these very tiny, slug looking "black things" on my hands - now I know they were baby black slugs! While slugs, the kind we are used to seeing in this area, can wreck the most well-planned out anti-slug layout, these black slugs are absolutely devastating to the garden! Oh, and they also like underground growth such as bulbs and tuberous plants, so I can't even begin to figure out how to get rid of them! They get into the soil in potted plants and climb the heights of shrubs / small trees...watch out for these guys!! Oh, and a final note, being hermaphrodites, it only takes ONE!!


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