What can be done for my brunfelsia shrub growing outdoors as its leaves are turning a rust brown colour spreading from the vein outwards? Another brunfelsia shrub growing a few feet away is not displaying the same symptoms.
Brunfelsia Laeves Turning Brown
Certified GKH Gardening Expert
From your description it is difficult to say. It could be rust fungus, or another type of fungus.
It also could be due to pests.