Answer: I can't really tell without looking at the vine, but it sounds like a bacterial or fungal problem. This can happen with overwatering or poorly draining soils. Ivy doesn't mind dry soils so if you've been watering a lot or if you've had a lot of rain that may be why your ivy has developed a disease. It could be that you can save your plant if you dig it up and remove the affected plant parts so the problem doesn't spread to healthy plant parts. As long as you still have some healthy green stems, take some tip cuttings and root them in water before digging the plant and removing the damaged parts. Ivy usually roots readily in plain water or even in pots of moistened potting soil. Good luck with your ivy!
Q&A Library Searching Tips