Cambridgeshire,
United Kingdom 
Our camellias are starting to drop leaves they seem to get a dark patch which spreads then the whole leaf turns brown & very brittle we were told this could be rust but how should we treat it please J Perry
7 Jun, 2010
If you still have a problem with the Camellias, it would be very helpful if you could post a photograph, but from your description so far, this could be caused by drought.
10 Jun, 2010