! planted a new apple tree ( bare root) early this year. started to leaf and produced two trusses of flowers with 5 flower heads on each. When flowers went the little apple buds appeared. however checked one morning to find one complete truss gone. put a mesh on the other one in case it was birds but next morning two gone with one hanging off, eventually the other two went. what can we do to stop this happening next year as out crop is gone for this year?