Noise Screening

I have a neighbour who constantly goes around his yard on a motorbike. We are situated below a hill and is is situated on the hill. My mother owns land beside my house and there are four large beech trees. Someone was sugesting to try put up some noise/wind barrier from tree to esb pole and they reckon the noise would bounce of the barrier. What do you think, Would this be correct? We were going to plant evergreen but the Reps scheme my mother is involved in wont allow this.