> I have a weblike material that covers the surface, doesn't kill the
> plants but completely covers some of them. Vanishes when touched, as if
> it melts. Any suggestions.
Yes - I get that as well (though only on the soil - I haven't had it
cover plants!), especially on newly potted plants, before algae,
mosses, etc. get established. After the green algae gets going, I
sometimes see some other organism which spreads from a single point
and kills the algae (someone once told me that the 'killer' stuff was
a 'slime mould').
-- Clarke Brunt (clarke@brunt.demon.co.uk)