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Inchworm Defoliation on Mature Red Maple

High Population Needs Spray

100-year-old red maple with massive inchworm (cankerworm) infestation—audible feeding. Spray Bt or Orthene. Large trees may need professional equipment.

Trees: Skeletonized Maple Leaves: Insect Identification and Systemic Control; Japanese Beetles on Japanese Maple: Identification and Control; Maple Leaf Spot: Phyllosticta—Mostly Cosmetic; Maple Leaf Spots: Phyllosticta—Rake Leaves, Don't Spray; Japanese Maple Cold Damage: Will Leaves Return?; Crimson Maple Leaf Scorch After Frost and Drought in Nova Scotia; Sticky Maple Leaves: Aphid Honeydew and Pruning Timing; Maple Leaf Spots in the Catskills: Harmless Cosmetic Issue; Caterpillars on Boulevard Crimson King Maple; Worm Trails on Water Lily Leaves: Insect Damage

Garden Articles

Raspberry Decline Unrelated to Maple Leaf Mold; More Details Needed

Maple Anthracnose: Black Leaves and Summer Defoliation

Preserving Autumn Leaves for Framed Art

Red Maple Seasonal Color Shift: Sugar Dynamics

Maple Leaf Galls: Harmless, No Treatment Needed

Bigleaf Maple Aphid Identification and Management

Silver Maple Leaf Drop: Maple Petiole Borer, Not Disease

Plants

Gray Specks + Lacy Leaves on Knockouts: Sawfly/Rose Slugs

Almond Tree Leaves Skeletonized: Japanese Beetles

Crimson King Maple Color Loss After Stress

Tar Spot on Silver Maple: Management and Perspective

Maple Leaf Blister: Cosmetic Concern, Not a Health Threat

Groundcovers for a Dead Lawn Under a Massive Maple

Zucchini Vine Borers: Identification and Organic Control