Defoe has scored just the one goal in his last seven games as Sunderland continue to battle for survival.
Defoe has found the net on 10 occasions this season for the Black Cats, but hasn't scored since the 2-2 draw with Liverpool at the start of February.
The side has now entered a crucial phase of the season in their battle to avoid relegation, and with Sunderland seemingly incapable of keeping clean sheets, there is a greater need for the forwards to make up for it.
Allardyce is quoted in the Chronicle, saying: “We just hope that he’s going to get over this barren spell because we need him to.
“At least Dame (N'Doye) got his first goal to get him underway. We’ve got to try to score more goals. We had to rely on a wonder goal from Fabio Borini, which we want to see more of.
“We need more goals of that quality in the final third, because it’s something we’re lacking in.”
N'Doye and Borini both struck in the 2-2 draw with Crystal Palace which has lifted Sunderland out of the relegation zone on goal difference, though they have played a game more than Newcastle United.
Defoe is certainly Sunderland's go-to man but it is a positive that two others forwards found the net this week, but they need to do it more regularly in order to ease the pressure on Defoe to deliver for them.
But one feels that once he strikes for the club in a big way, he could go on a run at the business end of the season.