Sorry to hear about the deer problem, they are all around me and frequently come into the garden area, but so far have done very little damage to the daylilies. So far they have preferred other plants in the garden. What a shame to have to fence in your plants, but it looks like you did a neat job of it. I had to use what looked like that same nylon material to fence in my vegetable garden at times(I did not do nearly as neat of a job). I have not used the ultra sound deterrents, but I just feel if they worked lots of people around here would be using them, and I have heard of nobody near me using anything with success on a large scale except fencing.