The brown garden snail was
to this country to provide escargot. It soon became a serious pest.
of the pesticides and other toxins in urban gardens, I would not
eating wild snails. For the table they should be raised in a controlled
The larger tentacles each have an
eye on the end. The shorter tentacles sense taste? smell?
Since these snails have become such serious pests many ways of
controlling them have been tried. When we first moved into this
house I tried the common snail poisons. I found piles of empty
shells, but not
much reduction in the population. When we had pets in the yard,
poisons were ruled out. The most effective method I have found is
digital, pick them up and dispose of them. At first it was easy
100 in a day. Now I seldom find more than a dozen. There is a
constant immigration from neighboring yards.
To deny snails and slugs access
to my plants I used wood ash from my fireplace. It was effective,
to be replaced any time it got wet. A TV gardener suggested the
spiky fruit of the sweet
gum tree (Liquidambar styraciflua). It
An interesting question is; How
much variation is there in the patterns of the shells? And
does it have any significance?
Snails are true hermaphrodites, that is, any two can exchange sperm then both will lay eggs. Here I have separated them slightly to show their harpoons, which hold them together while mating.
[Animals] [Back Yard Biology] [Science Can Be Fun]