If one made the bracha and took the lulav (without shaking it) and then got distracted and forgot to shake it, when he subsequently remembers to shake the lulav is a new bracha neccesary?
The person does not have to make another bracha because he was alreadyu yotza, even by merely picking them up, even without shaking them. It is however preferred to take them again to shake them. See M”B 651-49
A gut moed