Rough Oak Bulletgalls

Rising Bulletgalls

Rough oak bulletgalls are rising from oak stems in Ohio accompanied by their entourage of bodyguards. The galls are found on oaks in the white oak group with burr (Quercus macrocarpa) and swamp white oak (Q. bicolor) most commonly affected. The "mature" galls are commonly covered in black sooty mold.
Published on
Authors
Joe Boggs

Oak Bulletgalls are Rising

Dave Shetlar (Professor Emeritus, OSU Entomology) and I have recently observed newly developing oak rough bulletgalls in central and southwest Ohio, respectively. The galls are produced under the direction of the gall wasp Disholcaspis quercusmamma (family Cynipidae). We're also starting to see the gall's security detail, but more about that later.
Published on
Authors
Joe Boggs