Oak Dropping Small Acorns and Leaf Tips: Drought and Twig Girdler

Old oak in Maryland drought drops tiny acorns (June) and larger ones (July), plus leaf tips. Diseased?

Acorn Abortion

Clean cuts? → Twig girdler beetle: lays egg in twig, girdles/cuts it off. Larva develops in fallen twig.
Control: pick up/destroy fallen twigs to reduce next year’s beetles.
Minor foliage loss; not a health threat.

Acorn drop = drought. Twig tips = twig girdler. Neither harms tree long-term. Water and clean up twigs.

Trees: Shumard Oak Acorn Production: Timing, Quantity, and Variability; Oak Tree White Cottony Fuzz: Cottony Aphids and Honeydew; Willow Oak Decline: Wood Ash, Soil pH, and Leaf Spot; Elm Branch Tip Drop: Twig Girdler and Twig Pruner Beetles; Why Is My Mature Oak Not Producing Acorns?; Gambel Oak Acorn Weevil: Soil Systemic for Edible Acorns; Oak Dropping Thousands of Tiny Acorns in June: Drought Abortion; Carpenter Ants and Decay in a Mature Oak: What to Do; Acorn Production: Not Just Oaks, and Early in Landscapes; Oak Tree Seed Drop and Leaf Shed: Normal Cycles

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