Columbine Leafminer
The leaves of my columbine have white streaks. The plant flowered and seems to be doing fine.
Columbine leafminer is the culprit. A fly like insect lays its eggs on the leaf surface. The egg hatches and a worm-like insect enters the leaf feeding between the upper and lower leaf surfaces. The plants tolerate the damage though they can become unsightly. Since the damage is done for the season there is no need or benefit from chemical treatment. After flowering you can cut back the foliage of badly damaged plants. The new leaves will be fresh and damage free for the remainder of the season.
Related
Upcoming Live Events
& Webinars
April 3, 2024
Garden Trends
Franklin Public Library, Franklin, WI
April 10, 2024
FREE WEBINAR
Container Gardening Throughout the Year
Register now
April 11, 2024
FREE WEBINAR
7 Steps to Managing Water Where it Falls in Your Yard
Register now
April 17, 2024
Landscaping for Birds:
A Gardener’s Perspective
Glendale, WI
April 18, 2024
Be a Waterwise Gardener
Golden Rondelle Theater, Racine, WI
Register now
April 20, 2024
Pruning Hydrangeas and Other Shrubs
Pasquesi Home & Gardens, Lake Bluff, IL
April 27, 2024
Ridges & Rivers Book Festival
Viroqua, WI
April 28, 2024
Flowering Trees and Shrubs
Ebert's Greenhouse Village, Ixonia, WI
May 1, 2024
FREE WEBINAR
Ornamental Fruits and Vegetables
Register now
May 9, 2024
FREE WEBINAR
How to Plant Your Rain Garden
Register now
WATCH ON-DEMAND WEBINARS
Learn More