White Powdery Spots on Maple Leaf Undersides: Likely Insects

White Spots on Maple Leaves? Send a Close-Up Photo

Powdery spots on leaf undersides often indicate scale insects or mites. A sharp macro photo allows identification. Most are minor on healthy trees.

Plant Diseases: Identifying Lichen vs. Disease on Maple Trunks and Managing Frost Cracks; Black Spots on Japanese Maple Bark: Likely Harmless Lichens; Maple Leaf Underside White Spots: Galls or Aphids; White Spots on Maple Leaves: Cottony Cushion Scale; White Spots on Red Maple: Superficial Fungus/Algae, Not Harmful; Maple Leaf Spots and Tulip Tree Trunk Holes: Two Separate Issues; Bark Peeling and Leaf Spots on Young Maple: Decay Risk and Ants; Maple Trunk White Spots: Harmless Lichens; White Spots on 'King Crimson' Maple: Common Leaf Fungus, Easy Management; Maple Tree White Spots and Leaf Eaters: Lichen and Insect Control

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