For the past few years, I've lost a couple of roses to the dread cane borer and am trying various pruning techniques, gluing the ends, etc. to prevent further damage. My HT are really suffering and I'm considering getting rid of them for floribundas and English which seem to fair better. Would really love to know if anything is working for you. I'm going to be shovel pruning my second Double Delight at the end of the season if not sooner. Thanks!