As I was opening some hips from a wild white rugosa found on the seashore I noticed that many of the seeds had a single hole in them and also a spidery web with small round eggs(?)imbedded within the hip. Does anyone know the culprit?
I wrote a note about the probable hole maker in a recent RHA newsletter. You are a member and get the newsletter? If not, you need to be.
I would suspect that they were infected by a chalcid wasp, see:
http://www.nsl.fs.fed.us/wpsm/Rosa.pdf
We may see more of this in the future as the rose seed chalcid is proposed as one of the “weapons” to use in the fight against wild multiflora roses.