Pond snails
 

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Hello,

My last pond question! Our pond is full of snails. I think that snails
can reproduce on their own, which is why there are so many. Should I
live and let live or do I need to have a snail cull? Presumably they
will not leave the water and are not a threat to the rest of the
garden?

Thanks.

I know - you're the one with the frogs and the duckweed - sounds just like
our pond.

We got fed up with not being able to see the newts recently and have started
removing duckweed.
My method:
Hose on low power fine spray jets the duckweed to one end of the pond, then
small hand net to fish it out and dump on the side of the pond (to allow any
wrigglies to crawl back).
Lots of snails come too and don't seem able to crawl back (OK they're water
snails), but, you know, there's plenty enough to spare.

What may happen as a result of this cleaning operation, when it is finished,
is that the blanket weed will come back. Having been supressed all this time
by the duckweed cutting off the light.

At least these heaps of duckweed are lots of nutrient being removed from the
pond, which is a Good Thing.
Oh - not a Good Thing - now we can see into the pond and see how much it
needs that big cleanup we've been promising - for the last 10 years. I built
it 3 foot deep - perhaps 18" of silt now.

Just can't win (but the newts and frogs are thriving and breeding).

Lol