How can I get frogs to use my pond?
In all the 17 years we've lived here there have never been tadpoles or newts in our pond and I'd really like to change this. I think part of the problem might be that the pond is built into a grass bank and the sides are all raised so there's no easy way for a frog to get in or out. I read somewhere about creating a "frog ladder" - should I do this and, if so, how?
Also we keep a net over the pond in the winter to keep leaves and herons out. When should we remove this to let frogs in to breed?
We do have fish in the pond but I only put them in because we had a problem with mosquitoes. If we had frogs we wouldn't need the fish, would we?
We do often see toads in the garden but not frogs. I don't think the toads can use the pond for breeding though either.