My Brugmansia Tree Is Losing Leaves and Has Brown Spots

Question

It must be some sort of a fungus. What can I use to put systemically in the soil? It has been in the house for the winter and will not go outside for another couple of weeks.

Answer 1

It has a fungus. It should not kill the tree, but it does look unsightly. Treat the plant with neem oil. It will need to get on the leaves to be effective, but neem oil is organic and safe for people and pets.