I recently bought a rose bush for the first time and planted it in a large pot according to the instructions on the label. It has been about a month since then, the first yellow rose has started to bloom.
However, I recently noticed that there was a small hole in the woody part of the bush, near the bottom. There were also wood shavings and bits on the soil directly above it. My brother told me that he saw black insects that looked like ants with wings crawl into the hole. What are these insects, are they harmful, and if they are, how do I remove them?
I am only 17, but I like the idea of planting roses, so I would like to keep my first rose bush alive and as healthy as possible. I have little gardening experience though, so please answer in detail (as I may not understand the terms or whatnot).