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Rapid Defoliation: Caterpillars or Deer? Diagnosing Complete Leaf Loss on Roses

A rosebush lost nearly all leaves in a week while blooms remained untouched.

Damage Patterns

Skeletonized leaves (veins left): Caterpillars or sawfly larvae.
Entire leaves gone: Vertebrate browsing. Above 3 feet = deer; below 2 feet = rabbits.

Animal Deterrent

Spraying with diluted ammonia or Windex (which contains ammonia) discourages deer and rabbits by scent. Identify local wildlife to target the right culprit.

Roses: Identifying Rose Leaf Damage: Beetles, Caterpillars, or Aphids?; Reviving a Declining Potted Rose Houseplant; Sudden Leaf Drop on Healthy Rose: Root Zone Investigation; Heat-Stressed Rose in Colorado: Yellow Leaves, Brown Tips; Shot Hole Fungus on Don Juan Rose – Not Insects; Diagnosing Yellowing Leaves and Defoliation in Roses: Iron Deficiency and Black Spot; Rose Slugworm (Sawfly Larvae) Damage: Skeletonized Leaves on Standard Roses; Rose Bush Losing Leaves After Transplant – Root Stress; Carefree Rose Bush After Late Freeze – Scratch Test for Life; Yellow Leaves with Holes: Insects, Watering, and the Two-Knuckle Test

Garden Articles

Diagnosing Abnormal Rose Leaves: Light Green, Narrow, Shriveled Clusters

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New Rose Bush Produces Miniature Blooms – Heat and Water Stress

Why Climbing Roses Drop Leaves After Spring Bloom: Common Causes and Fixes

Black Spot on Roses: Identification and Control

Sticky Residue on Rose Leaves: Insect Honeydew or Environmental?

Rose Bushes Losing Leaves in Desert Heat: Stress, Sunburn, and Iron Issues

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Butterfly Bush Spider Mite Infestation: Identification and Control

Rose Bush Pruning: Dealing with Black Stems and Preventing Black Spot

Mini Rose Stress from Environment Hopping: Indoor to Outdoor Transition

White & Yellow Leaves on Phoenix Roses: Mildew, Spider Mites & Heat Stress

Rescuing a Wild Rose Bush on Cleared Land Near Albany, NY

Newly Planted Rose Bush Turning Yellow? It's Likely Transplant Shock in Heat

Rose Defoliated by Black Spot: Fungicide Strategy and Foliar Feeding for Recovery