Esta variety raspberry canes
In the following article from this website: Crumbly Berries: Information And Reasons For Raspberries Falling Apart By Bonnie L. Grant, the author writes that the raspberry variety ESTA is a good disease tolerant variety. I have tried to find a nursery where I can buy this variety but I cannot locate one. Does anyone know of a nursery where I can purchase them for delivery during the next dormant season?
I can answer my own question. According to the Penn Sate Extension Service personnel to the best of their knowledge this variety is no longer available anywhere in the USA