philippa smith2 said:
Newts will certainly eat frog spawn ( presumably toad spawn too ? ) but how big a Tad of either has to be before too big for a Newt to tackle I have no idea. As GD says dragon fly larvae are also voracious predators.Unless you have definite evidence of a mass die off ( i.e. dead tads floating about with no sign of predation ), I would think they have simply gone about their normal business and gone deeper into your pond.If you do have lots of dead tads, contact your local Wildlife Society as they can often confirm disease or otherwise.