Q.Fungus on Jasmine
Entire back of property is protected by fence which is completely covered with Jasmine. I am losing some plants after leaves turn light yellow and then eventually brown and fall off. Only difference I see is the st.aky part of plant (lower section) has a green tint to it that the health Jasmine does not have. No irrigation is present and plant survives on rain water only. Ground does not seem to hold water. Is there a specific treatment I should be using..I have trimmed the dead branches back but am starting to get holes in the overall privacy that the Jasmine typically provides.

Yes, this does sound like, both, a spider mite infestation, and fungal. My method works for both, but you should treat immediately. If it takes over, then the soil will be contaminated beyond repair. This means that it will have to be thrown out, if new growth doesn't come out normal.