Holes in Double Knockout Leaves: Don't Over-Prune!

Mystery Leaf Damage Despite Treatment

Double knockout has holey leaves. Bayer granules applied early season, organic spray after damage started—holes continue. Should affected canes be cut? Prune whole bush to 12"?

Critical Advice: Don't Remove Healthy Canes

Leaves are the rose's food factories. Never remove canes unless diseased or dead. Your treatments should have worked—even soil-dwelling pests.

Alternative Culprits to Consider

• Granules need reapplication every 6 weeks
• Organic sprays don't control all insects
• Birds pecking leaves? Mice? Not necessarily insects!

Investigate before assuming insect damage—vertebrates can mimic chewing damage.