Fungal disease
Sooty mould
How to recognise it
Black wipeable coating growing on honeydew from aphids, scale or whitefly.
What helps
Treat the pest first, then wipe leaves with a damp cloth.
Often a care issue is behind it (watering, light, placement) – the care check in the app helps narrow it down.
Not sure it's this?
LeafChecker compares your photo with every disease and pest on our list and tells you honestly how sure it is. No sign-up, no subscription.
Check a photo – freeTypical organisms: Capnodium citri, Scorias spongiosa