what some people will go through for a peek at a plant. Bet those athletes were surprised.
I know they have to certify that the Ti cuttings were taken above 18" in Hawaii. Perhaps this disease is fungal and spores could splash onto lower leaves? I have not run into this problem despite having had Ti cuttings imported. I believe Elaine and I used the same grower, Vintage Green, on the big island.
Let us know where you are located Fanny, it always helps to understand about different climates. You click on the little person in the upper right corner and add your location or anything that explains your growing conditions. We have folks from all over the world here and all share information willingly.