Posted: 02/06/2013 at 01:32
I always grow the vine type ( Shirley, Alicante, Red Cherry amongst my favs) and have always removed them all. Not sure if they really affect a plants ability to produce but I find it makes a neater, more controllable plant especially in greenhouse conditions. Once you have about 5-6 truss, stop the plant by nipping out it's growing point - top of the plant.
If they're small I nip out with my finger and thumb - any bigger, sterile knife/scissors.