Either slugs eggs or slow release fertiliser - how long have you had the rose bush? If it is more than a couple of years most likely to be slugs eggs.

Slug eggs squish if you squeeze them with your finger and tend to be small and pearl like, fertilizer tends to have hard shells and do not squish - they are also larger.

slug eggs are transparent round jelly like. slow release fertiliser as said are hard shelled and crack open. I suspect it is the later in the compost.

Thank you for the info, looks like I have slugs eggs. Time for the nematodes

no its too cold for the nematodes Tintin. also if they are yellowy/cream they wont be slug/snail eggs as they are colourless.