How To Protect Potted Magnolia Coco From Fungal Disease

Question From: Esch-sur-Alzette, Luxembourg, Luxembourg
Q: how do I control fungal disease o n a magnolias coco which is in a large pot on my balcony

A: I cannot recommend products in your country. I would contact a local independent garden center, a botanical garden or a school of horticulture. Best And Happy Yardening, Nancy