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Oregon Invasive Species Council

April 2009- White Garden Snail
Invasive Species of the Month
April 2009 Invasive Species of the Month
White Garden Snail (Theba pisana)
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white garden snail

What is a White Garden Snail?
white garden snail
The white garden snail is native to southwestern England, Wales, Ireland, western France, Switzerland, and the Mediterranean countries of Europe and Africa. It is the worst potential agriculture pest of the helicid snails introduced to North America.  It can climb easily and survives oceanic journeys in freight cars because it surrounds itself in mucus to prevent dehydration.  Once established, it can be found in densities of up to 3,000 snails per tree, and causes severe defoliation of plants, particularly citrus and ornamental plants.
April 2009 calendar events
April 2009 Oregon Invasive Species Council calendar events
calendar in printable version (pdf)



Where?
Any land area, but usually found in agricultural areas.
Lookalike
No.  None of Oregon's native snails are crop or garden pests, although European brown garden snail is established along the coast and in some neighborhoods in Albany, Eugene, Salem, and Portland.
What can you do?
If you see one of these snails, report it immediately at 1-866-INVADER or http:// oregoninvasiveshotline.org
Pest Risk Assessment
Pest Risk Assessment of the White Garden Snail
All months of 2009 calendar
All months of the Oregon Invasive Species Council 2009 calendar