The young Bees are the current holders of the Middlesex Cup while they fell at the final hurdle in last season's London FA Cup.
Neil MacFarlane's side have been on a fantastic run of form in recent weeks having netted 11 times in their last three matches, keeping clean sheets on each occasion.
Last time out they beat a strong Rangers side 2-0 in a friendly and the trip to Erith gives them a chance to continue their positive momentum as they compete for silverware on two fronts.
The fixture also offers another opportunity to come and watch the next crop of Brentford youngsters as they look to continue their development and aim for a spot in Thomas Frank’s first team.
Erith Town v Brentford BLondon Senior Cup Semi-Final Wednesday 18 March, 7.45pm kick-offErith Stadium (DA8 3AT)
Ticket prices: Adults: £8.00 Concessions: £5Under-16s: FREE