Q.How To Cure Infected Mango Sapling?
I am growing a mango from seed for a couple of months now. It is constantly raining in Florida now and I noticed that my mango sapling has some black dots on almost all the leaves (mainly on the underside) and a few brown scars on the stem. I assume it’s due to a fungal problem so I’ve been spraying fungicide on the leaves for a couple of days now. It is still growing but I’m afraid that it might die. Is there anything else I can do to save my mango sapling?

Certified GKH Gardening Expert
Unfortunately, you are doing what you need to do at this point. Continue using fungicides according to the label and all recommendations on it. If this is not a copper based fungicide, then it may be necessary to switch to one.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm
https://www.gardeningknowhow.com/edible/fruits/mango/mango-trees-in-pots.htm