DaisyI said:Your Columbines are beautiful! I'm not sure I understand the problem...
Maybe if you post photos of the leaves?
Here are a few photos of the damaged leaves and blossom and 2 photos of the bare plants that are left after the flowering is done. I've had luck cutting back the bare stems and new growth coming out but within a week the foliage is again diseased and covered with sawfly larvae. Any suggestions?