London (change)
4 messages
19/05/2012 at 16:05

HELP!!!!, I have a stunning 50 plus year old camelia. And this year its developed a mass of what seem to be black spots/ marks on the leaves. And around 10% of the leaves have started to yellow. Does anybody know what this might be, and haw to cure it.

19/05/2012 at 22:26

Yellowing of leaves often indicates too alkaline a soil. Try giving a good feed of a food suitable for acid lovers or sequestrine of iron and see if that helps.

20/05/2012 at 12:28

All my camelias have the black soot on them. 

20/05/2012 at 13:32

That suggests that they have scale insect on the underside of the leaves - these excrete honeydew, on which fungus grows. Kill the scale insect by spraying with Provado Ultimate Bug Killer, wait a couple of weeks and you can wash the leaves clean.

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