Summer wine ninebark plant

Asked October 23, 2020, 11:28 AM EDT

In cutting dead branches I found circular holes all the through the middle of each stem. These were perfectly round and go through the stem all the way down. It appeard small black insects, ants or some type of bug came out of the hole. Have you heard of this and if so is it treatable? Thanks

Boone County Kentucky

1 Response

Thank you for your question. It appears that the assigned expert is unavailable. Perhaps your county Extension service can provide some help: Good luck!