Q.Citronella plant with white spots
I have a Citronella plant that the leaves have white spots and are turning brown at the leaf ends. What can I do for the plant? I have followed the directions for the hours of sunshine and shade for this plant. There are no insects on the plant.

It sounds like a fungus and can be treated with a fungicide.
You can cut back the effected areas of your plant and remove from the garden.
Wash tools you use before using again in your garden.
Here are a few links.
https://www.gardeningknowhow.com/edible/vegetables/cabbage/cruciferous-leaf-spot.htm
https://www.gardeningknowhow.com/edible/herbs/scented-geranium/scented-geranium-care.htm
https://www.gardeningknowhow.com/edible/herbs/scented-geranium/mosquito-citronella-geranium-plant.htm