Beginner Gardening: Trumpet Vine- disease or infestation, 1 by MTnic

MTnic wrote:
One of my trumpet vines is at least 7 yrs old. It was here when I bought my home- it has never grown nor has it bloomed. It is in full sun so I'm not sure what's up with that, maybe the soil. Anyway, this year it looks terrible. I actually wasn't even certain it was a trumpet vine as I have others and this one looks somewhat different. It was ID'd in the Plant ID forum and I was informed it must have some herbicide damage or disease. I don't use herbicide so I'm wondering if it is a disease or infestation. Any ideas?