Q.Black Soot on Camellia
There is black soot like matter covering leaves of camellia tree.

Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on March 31, 2011
It has sooty mold, which is a symptom of a pest infestation, usually aphids. Treat the plant with neem oil. This will help with the pests and the sooty mold. Here is more information:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm
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