What Is Growing on My Oak Tree Leaves?

What Is Growing on My Oak Tree Leaves?
★ Key Takeaways

If You Have an Oak Tree in Your Home Landscape, You Might Have Spotted Small, Unsightly Brown Balls Hanging Like Fruit or Growing into a Branch. These Little Balls, Called Oak Galls, Are a Common Occurrence Caused When the Tree Reacts to Non-Stinging Wasps Laying Their Eggs on Its Leaves, Branches, Twigs or Flowers.

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Direct Answer • Key Takeaway

If You Have an Oak Tree in Your Home Landscape, You Might Have Spotted Small, Unsightly Brown Balls Hanging Like Fruit or Growing into a Branch. These Little Balls, Called Oak Galls, Are a Common Occurrence Caused When the Tree Reacts to Non-Stinging Wasps Laying Their Eggs on Its Leaves, Branches, Twigs or Flowers.

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Alexander Ross
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Alexander Ross

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.