Every year my Columbine get leaf miners. What can I do to get rid of it?
This is a very common problem with Columbine and really is more aesthetic than a problem to the plant. You can try a systemic like Bonide’s or Bayer’s Tree and Shrub Insect Control (apply early spring), but many folks will simply cut off the infested foliage after the plants are finished flowering, and let them re-grow the rest of the season.