Aquilegia sp. (Columbine) gets several foliar diseases but one of the most common problems is a serpentine type leaf miner (leaves light tan wiggly lines through leaves). Insecticides may help but they are not necessary since this insect is not fatal to the plant - just an aesthetic problem mostly.
Written by James Schuster, Extension Educator, Horticulture, and reviewed by Bruce Paulsrud, Extension Specialist, Pesticide Applicator Training and Plant Pathology,Department of Crop Sciences,University of Illinois at Urbana-Champaign.