Looks interesting, even if it is a while off yet :http://www.sciencedaily.com/releases/2011/09/110915113634.htm
Dave
Dave
... just spotted yer post Shewie, was wondering did you find out about your problem?
Surely, in all our competence we can devise something else that removes these parasites ? Ignoring them isn't working, they're becoming a disease vector that's a real health hazard.
Cheers,
Toddy