I dont know if anyone can answer this but I thought I would throw it
out here anyway. Recently a wildlife management agency in Australia
asked on a herpetology mail-list if anyone knows of any microorganism
that could be used to destroy one species of toad, Bufo marinus
aka Cane or Marine Toad exclusively. It must be guaranteed not to
affect any other species of frog, topad or their larvae or any other
species of animal. Does such a bug exist?
As an aside most of the poeple on the group including myself feel
that even considering such an idea is not the way to go. Australia
should learn by now. The Cane toad itself was an experiment in
biological control gone awry.