That's a hard question for me to answer Jerry since I have hundreds of different lilies and they leave most or nearly all of them alone. I just don't have a way to tell which ones they dislike the most.
I can tell you which ones they LIKE the most though !
First this is not a lily but it is a water plant that I like and think is way under apreciated in water gardening and it is Water Plantain. It has GOT to be a Red Ear Sliders FAVORITE vegetable. If you want to grow a plant for turtle food then Water Plantain is what you want. Grow it like you would grow lotus in very shalow water in a pot where your turtles can't get to it because they will eat every bit of it and kill it. In ideal conditions it will grow in 2-3 ft of water. This is turning into a " what turtles LIKE to eat thread so I had to mention it. It is also very pretty with a spray of tiny white flowers about 2 ft high.
RES will travel from one pond to the next to eat it.
A red ears favorite lily is definitly Laydekery Fulgens. I can barely grow it they eat it so much.
Next would be Carolina Sunset.
After that I would say that about any tropical lily would be next fave.
After that I realy don't know. Those first two are the only ones that they consistantly eat a lot of that I can think of.
As my population of big turtles grows I might be able to learn more since they will be eating more lilies. I realy don't have much turtle damage so I don't take notice of which ones are slightly more or less damaged.
I know that snappers like Yellow Watermelon stems the best. They just about striped one this year. Snappers are on the menu from now on. One of my favorites for sure, yum.
My hardy X tropical plants have been unmolested so far and I have 5 purple ones so far. No blues yet but stay tuned. Lots of hot reds and pinks though.
One thing that's interesting about my H X Ts is that bees hate them and will not land on them except rarely and then they leave quickly. This is great because around here for most of the year the anthers are destroyed by the end of the first day or the beginning of the second. Especialy the tropicals. it really ruins the flowers.
My H X Ts stay perfect because no bees visit them. This is very good because the beautyfull tropical anthers are one of the main things that distinguish my H X Ts flowers from hardies.
