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Mock Orange Defoliation: Frost, Wind, or Pests?

Liz's mock orange was nearly stripped of leaves in days. She suspects Japanese beetles but saw none. Expert suggests weather, not pests.

Rapid Defoliation Causes

Late frost/freeze: Tender new leaves killed and drop.
High winds: Physical stripping.
Herbicide drift: From nearby application.
Pests: Beetles, caterpillars, sawflies—but they're usually visible and take longer.

Recovery

Mock orange (Philadelphus) is resilient. If roots are healthy, it will releaf in 2–4 weeks. Do not fertilize now. Water if dry. Monitor for actual pests on new growth.

Weather is the most likely culprit for overnight stripping.

Shrubs: Ligustrum Leaf Issues: Diagnosing Tiny Leaves and Browning in Florida; Sticky Residue on Stephanotis: Honeydew and Sooty Mold; Mock Orange Aphids: Location Matters More Than Soil; Indoor Citrus Oily Leaves: Rust Mites or Aphids; Mock Orange Leaf Curl and Black Specks: Insect Larvae and Organic Control; Calamondin Orange Sticky Leaves: Sucking Insects and Over-Fertilizing; Identifying a Leafless Mystery Plant: Why Foliage Is Essential for Diagnosis; Lucky Bamboo Yellowing: Light, Water, and Root Health; Why Mock Orange Blooms Only Once After Transplanting; Mock Orange Shrub: Growing and Caring for This Fragrant Favorite

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