yes - its brown scale insect, and you need to get rid of it so the plant doesn't lose vigour. As its a plant which produces edible fruit, you're restricted as to what you can use - personally, I'd try a disposable cloth or three (they'll get mucky) very lightly moistened with methylated spirits, and rub them off with that, without touching any of the leaves. For a spray, you can use Westland Resolva Bug Killer or Bayer Ultimate Fruit and Veg Bug killer, but read the instructions carefully regarding when its safe to use on fruiting plants.

Thank you Bamboo, great help.