Thanks for the info. I won't be using a really strong concentration so
hopefully it will be ok. At least one pot has an unfortunate combination of
moss and algae, so maybe I'll try that one first.
-danny

"V_coerulea" wrote in message
.. .
I'd skip it if you want to keep the moss. I don't think there's severe
damage @1tsp/gal, but anything more... I had several flats of moss under
the benches when I treated with Physan and got a little browning (maybe
areas that got more drip). But when I cleaned the benches and forgot to
move the flats, the whole flat turned brown - all 4 of them. That was
using 1 Tbsp/gal. So I'd recommend doing what Ray said and testing one
spot first with the dilution you're planning on using.
Gary

"danny" wrote in message
...
Does Physan 20 kill moss? I want to get rid of some of the algae in my
pots (and I think a couple have some sort of mold), but I've finally
gotten moss established on the top of a few pots and I want to keep it.
Just wondering if I should skip putting Physan on the ones with moss.

thanks,
danny