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Yaupon Holly Psyllid Galls: Prune to Break the Cycle

Swollen, cupped leaves on yaupon holly are psyllid galls. Tiny psyllids lay eggs on new growth, causing leaves to form a protective pouch. Prune out galled tips each spring to disrupt the lifecycle. A fall soil drench of imidacloprid (Bayer Tree & Shrub) can provide additional suppression.

About Gardening: Dwarf Yaupon Holly After Caterpillar Attack: Leave Alone to Recover; American Holly Losing Leaves in Spring? It's Normal—They're Semi-Evergreen; Diagnosing Sudden Leaf Drop on Dahoon Holly; Holly Scale Infestation: Identification and Treatment Plan; Cherry Leaf Galls: Harmless Bumps Caused by Insects; Weeping Yaupon Holly: A Graceful Native; Identifying and Controlling Cottony Camellia Scale on Holly; Why Your Container-Grown Oakleaf Holly Is Losing Leaves; Witch Hazel Gall Aphid on Fothergilla: Cone-Shaped Leaf Galls; Yaupon Holly Tea: North America's Native Caffeine Source

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