I found a small amount of rust on Incandescent daylily so I stripped off all the green foliage and cut off most of the top except for the 2" of white growth and then sprayed fungicide on it. In fact just to be safe, I did the same on all the plants in my order and sprayed fungicide on all of them for prevention eventhough none of the other plants showed rust. These stripped off foliage was immediately placed in a bag and disposed in the trash. Some of my plants ordered in the spring from Floyd Cove had rust when I pulled off the foliage. I did the same as above and sprayed the plants twice a week the first week and then once a week after for the month. To this date, I have not seen any rust in any of the Floyd Cove plants. It is important that you check the plants before you plant to see if there is any rust hidden in the foliage. You will see the orange spores hidden in the foliage when you strip them down to the white part.