I would appreciate any help with my very thorny, unruly Constance Spry rose. I have wilting and eventual drying up of new growth and I think nascent buds on several of my roses this year. Upon examination, I have found tiny budworm-like worms with darker heads within the stem itself, just below the wilted part. I have sprayed with BT but as they are attacking from within, I'm wondering if that will be effective. I love the gorgeous cabbage roses on this plant. It only blooms once a year, on old wood, as I understand it. I have to enclose all of it (roughly 8 feet by 6 feet by 4 feet when it is lying on its side) with 10 to 15 garbage bags of sawdust and leaves to get the canes through the winter. This is quite a production so I'd rather have as many blossoms as possible. I have a few big buds on the same canes that have the die off. Also I'm not sure which ones to cut back or off other than the dead, diseased and damaged and the ones that are too long. Some of the twiggy ones have buds on it. My usual state upon uncovering it in the spring is to wait for it to leaf out to see what's survived, then I wait for signs of flower buds so I can clean out some of the congestion. Thanks for any suggestions.