why don’t my flowers smell anymore on my banana shrub (michelia figo)?

Question

the leaves also have some type of fungus like white spots…

Answer 1

Your plant may have powdery mildew or mealybugs. These articles should help. The brown fuzz on immature leaves is normal, though.

https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm

https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm

https://www.gardeningknowhow.com/ornamental/shrubs/banana-shrub/how-to-grow-banana-shrubs.htm