Those weird balls on your oak tree are from gall wasps
Fuzzy Orange Galls from Parasitic Wasps on Oak Leaves – Observations from 2013-2020 – Naturalis Historia
What are these ugly bumps on my tree's leaves? - MSU Extension
Blame Wasps And Squirrels For All The Oak Leaves On Your Lawn | STLPR
What Is Wrong With My Tree? Gouty Oak Gall
Oak Diseases & Insect Pests | Home & Garden Information Center
In our email box – galls on live oak | Texas Plant Disease Diagnostic Lab
What Are Oak “Apples”? | The Granada Native Garden Newsletter
Quick Tip: What are those Round Growths on my Live Oak tree? | The Masters Lawn Care
How Galling! | New York State Parks and Historic Sites Blog
What are These Strange Orbs on My Oak Trees? - Gill Garden Center + Landscape Co.
You'll Never Guess What's Inside These Cute Little Oak Tree Balls
Oak Galls and Mistletoe: Nature's Decorations - The Real Dirt Blog - ANR Blogs
Brown balls on oak trees aren't harmful | San Luis Obispo Tribune
What's wrong with my plant? : Garden : University of Minnesota Extension
🔥 You know those brown balls that grow on oak trees? They're called galls, and can occasionally be pink and translucent. : r/NatureIsFuckingLit
Brown balls on oak trees aren't harmful | San Luis Obispo Tribune
Oak Galls and Mistletoe: Nature's Decorations - The Real Dirt Blog - ANR Blogs
Home, Yard & Garden Newsletter at the University of Illinois
Oak Galls - Tree Top Nursery & Landscape Inc.
