Q.White fuzzy stuff on plants
This stuff has already killed my jasmine plant and now is starting on my gardenia and hibiscus. I can’t tell if it’s mealworms or white mold.
This could be Mealybugs, fungus, Powdery Mildew or a few other issues.
Treat the plants with Neem Oil.
This works as both an insecticide and fungicide.
I have a listed a few links for you with more information.
https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-pests.htm
https://www.gardeningknowhow.com/ornamental/flowers/jasmine/jasmine-pest-control.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-sticky-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm