What causes white spots on plants thanks
See if this helps.
Take a branch to a local nursery.
It is usually powdery mildew.
Or take a clear picture of it to your local agriculture extension office.
Aphids aren't typically white.
Aphids can be various colors, including yellow, and produce a sticky honeydew substance.
Powdery mildew is white and is a fungus. Can be treated with a special spray made for it. Or could be white fly. Look at it better with a magnifying glass.