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Sooty Mould
Capnodium, Fumago, Scorias
Sooty moulds are fungi which cover plant leaves, stems
and twigs in a black sticky substance. In almost all
cases, the sooty mould is secondary to an infestation
of insects that secrete honeydew. These insects include
aphids, scale, mealybugs and white flies. Treating the
insects will remove the source of the honeydew and dry
up the sooty mould, which will eventually fall or wash
off the foliage. The mould itself does not feed on the
plant, however as it covers the leaf surface, it is
blocking light and reducing photosynthesis, essential
for plant growth.
Symptoms
Black sooty growth covering any part of the leaf, stem
or branch of plants. Usually can be rubbed off with
soap and water.
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