in Wisconsin we have considerably colder weather than you do. the snails are also
hardy to this area. all you need is importing one water lily with the wrong snail
and you too can have swimmers itch.
well I keep the birds out of my pond. but for example right now some small snails
found their way in and are constantly clogging the little pump I use for my UV light.
I do want to kill them off.
the point is I didnt go out looking for snails to put in there. Ingrid

Edward Haworth wrote:
Schisto is only going to be a problem in certain cliamtes and with
certian species of snail. Not something to worry about in the Uk for
eg. Also how do you stop snails getting into a pond? Any half way
sizeable pond will pick up the odd snail egg from water bird feet?



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