Looking to respond to a loss by the same scoreline at West Ham United last time out, Owusu's 30th-minute effort was the difference at LCFC Training Ground.
This victory, an eighth of 25/26 so far, leaves our youngsters sixth in the PL South table, ahead of this Saturday's trip to The Knighthead Training and Academy Grounds to tackle Birmingham City (11am GMT kick-off).
The details
City: Stretton, Simons, Aideed (Sutherington 64'), Adedeji, Diallo, Lawrence, de Lisle (Boothe 45'), Owusu, Colangelo-Allen (Corden 81'), Manyumba, Fletcher (Carr 56').
Sub not used: Hames.
Goal: Owusu 30'.