Need Advice For Getting Rid Of Scale!!!

[Leafmite]

Use a systemic. They stay in the plant for some time and get rid of sucking insects in a proficient manner. Just be careful to read all the cautions. I use a granular type for my roses, plumeria, hibiscus, and any other plant that doesn't produce edible fruit or leaves. It takes a few weeks for the granular one to take effect but then it lasts for six weeks.
If by any chance the systemic doesn't work, Sevin will. We spray this for difficult to kill Japanese beetles, about once every three years. The spray is amazingly effective but should always be used outside and where people and pets won't be exposed to this. There is a powder form
but I am not certain how effective it is in comparison.
Be careful when using any insecticides. Try not to breathe them in or get them on you. Some of them can cause eye-damage. We wear goggles and a breathing mask when spraying the fruit trees and roses, then shower and rinse, then wash the clothes.