Probably can only let it run its course. I have been loosing pickerel/tiger frogs for 6 years running now. Just them, nothing else. Assuming it is some kind of pathogen. This year is the first time I haven't had to go around the pond and fish out the dead ones, but quite possibly because I have mink cleaning them up first. I keep finding dead half-eaten frogs on top of the dock, picnic table, and my ADK chairs.
