Beginner Gardening: Weird pattern on leaves fungus? mite? insect?, 1 by JulieQ

JulieQ wrote:
O, I googled them and they are quite insidious. By the time you see the trails the leaves are protecting the leaf miners from any surface pesticide. I decided to pick off the affected leaves. The columbine decline in the heat of the summer anyway, but I want them to remain as healthy as possible.

Funny thing is, several articles suggested planting columbine to attract the leaf miners away from your desirable plant.

Here is my columbine earlier this spring...