Hiker's Guide to the Trees, Shrubs
and Woody Vines of Ricketts Glen State Park

Blueberry Stem Gall, Caused by the Wasp Hemadas nubilipennis
(Hymenoptera: Pteromalidae)

Reference: Hayman, D., K.E. MacKenzie, and E.G. Reekie. 2003. The influence of pruning on the wasp inhabitants of galls induced by
Hemadas nubilipennis Ashmead (Hymenoptera: Pterolamidae) on lowbush blueberry. Journal of Economic Entomology 96:1245-1253.

Updated 3 May 2017.