White Garden Snail

white garden snail


The invasive White Garden Snail (Theba pisana) has been detected for the first time in San Mateo County in Half Moon Bay, California.  This dime-sized snail feeds on a wide range of agricultural and ornamental plants and has the potential to cause considerable environmental and economic damage.

The White Garden Snail may appear similar in color to a Brown Garden Snail or Milk Snail, but has a smaller, flattened, light colored shell with a dark center.

Our office is currently determining the extent of the White Garden Snail distribution within San Mateo County.

What should you do if you think you have found White Garden Snails?

Please see the UC IPM website for management options for white garden snail.

White Garden snail comparison to Brown Garden Snail and Milk Snail

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