In article 42,
Sarah Austin wrote:

http://www.ext.colostate.edu/pubs/garden/02920.html

Looks like the Septoria fungus.

Now doesnt fungus need alkaline conditions?

I'm wondering of coffee grounds might make the soil acidic and get rid of
it.

IIRC it's the other way around. It's possibly due to CO2 released from
decaying organic material, mixing with water to form carbonic acid.
--
³When you give food to the poor, they call you a saint. When you ask why the poor have no food, they call you a communist.²
-Archbishop Helder Camara

http://tinyurl.com/o63ruj
http://countercurrents.org/roberts020709.htm