Troubleshooting Leaf Loss on New Knockout Roses

Complete leaf removal: Likely animal damage (squirrels, rabbits, deer)
Chewed/ragged leaves: Insect feeding—apply rose insecticide spray

New Plantings Losing Leaves

Four knockout roses planted last fall in the Atlanta area—two thriving, two losing leaves with apparent feeding damage.

Roses readily regrow foliage. Leaf loss doesn't kill established plants—they'll push new leaves once the stressor is addressed.

Roses: Diagnosing Abnormal Rose Leaves: Light Green, Narrow, Shriveled Clusters; Why Your Knock Out Rose Isn't Blooming; Black Spot on Roses: Identification, Myths & Effective Control; Rose Sawfly (Rose Slug) Damage: Identification and Control; Diagnosing and Treating Mealybugs or Spider Mites on Indoor Miniature Roses; Rescuing a Miniature Rose from Spider Mites and Black Spot; Gray Specks + Lacy Leaves on Knockouts: Sawfly/Rose Slugs; Diagnosing Yellow Leaves and Powdery Film on Climbing Roses; Reviving a Newly Bought, Pest-Ridden Rose Bush; Indoor Tea Rose Care: Humidity and Spider Mite Prevention

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