Ask-a-Dave's-Gardener: Brugmansia - Leaves with spots and curling, 1 by DookieBrown

DookieBrown wrote:
Anyone know what\'s causing these spots (first photo) and there\'s curling on my other one (second photo).
They\'re not very big. Just in a gallon nursery pot. Grown from cuttings.
I started spraying with Neem Oil 3 days ago and when they were rooting in water, the water was treated with Mycostop. Also when moved to potting soil, I drenched the gallon pot with water treated with Mycostop. This treatment was necessary because my plants got obliterated with Fusarium Wilt. All my Brugs died.