Arbor Source Tree ExpertsGall wasps are thriving right now. These “galls” on the tree are from being stung by the wasps. They do this to lay their eggs in the middle of the galls. A heavy infestation can kill a tree.
Wasps stinging trees
Gall wasps are thriving right now. These “galls” on the tree are from being stung by the wasps. They do this to lay their eggs in the middle of the galls. A heavy infestation can kill a tree.
