rote 1. (rÅt) n. 1. A memorizing process using routine or repetition, often without full attention or comprehension: learn by rote. 2. Mechanical routine.
Desert Rose Leaves Turning Yellow and Falling Off. The leaves on my desert roses in the front of the house, which doesn't get sun until 11 am (western exposure), are turning yellow and falling off. They do get a couple of brown spots on some of them before they turn yellow. I have sprayed them with fungicide a couple of times.
If your roses are displaying black spots and yellow leaves, the plants are infected with a fungal disease called black spot. Though the disease is referred to as black spot, other symptoms of the underlying problem, like yellowing of leaves, become apparent.