Magnolia figo loses lot of leaves

[Catwheazle]

Hello,
I bought a Magnolia figo from a French nursery this spring. Upon arrival, it had already lost a lot of leaves in the package,
even though the transport was short and the root ball was wet. I originally thought it was spider mites. But that's definitely out of the question now.
I then planted it in a larger container (hardiness zone 6a-5b) (a raised bed and rhododendron soil mix), and it seemed to be recovering. Now it's had a setback, and it's losing almost all of its leaves again.
Upon closer inspection, the leaves of my plant look like they have a fungal infection. Not the secondary infection of sucking insects, as I first thought?
- see pictures - .
I couldn't find anything online.
Thanks!
Bernd
Hardiness zone 6a-5b

[Herman Mylemans]

Bernd, you can use the picture on ChatGPT: they think sooty mold

[Catwheazle]

Was my first thougt.....but is something different :-(

[Herman Mylemans]

Bernd, have you tried ChatGPT?
ChatGPT: If you can't rub the spots off, it could also be a leaf spot disease: Cercospora/Septoria

[Catwheazle]

Hi, dont use Chat GPT. Cercospora/Septoria seems possible

[Jeffnz]

I get leaf spotting on my port wine magnolias, not sue what it is but a regular spray with a combination insecticde and mould spray seems to fix the problem but it does return..

[MarcR]

Hello,
I bought a Magnolia figo from a French nursery this spring. Upon arrival, it had already lost a lot of leaves in the package,
even though the transport was short and the root ball was wet. I originally thought it was spider mites. But that's definitely out of the question now.
I then planted it in a larger container (hardiness zone 6a-5b) (a raised bed and rhododendron soil mix), and it seemed to be recovering. Now it's had a setback, and it's losing almost all of its leaves again.
Upon closer inspection, the leaves of my plant look like they have a fungal infection. Not the secondary infection of sucking insects, as I first thought?
- see pictures - .
I couldn't find anything online.
Thanks!
Bernd
Hardiness zone 6a-5b

Brend,

If Captan is available it is an effective low toxicity fungicide.
If Captan is not available try painting the leaves alternating vinegar [distilled white works well] and chlorine bleach[sodium hypochlorate] diluted 2:1 with water..[2parts bleach 1 part water]. Rinse the plant with a hose after 15 minutes.

[Catwheazle]

got Captan
thx :-)