TWO goals from Craig Davies ensured derby day despair for ten man Rovers at Oakwell.
Travelling supporters greeting Rovers with jeers and boos as they left the field at the end of the match, showing their feelings towards a dire performance.
Former Chesterfield hot shot Davies netted either side of the break to give the hosts a comfortable victory over a poor Doncaster side.
Matters got worse for Rovers when substitute Adam Lockwood was harshly dismissed for a challenge on Stephen Foster with 20 minutes to go.
But the sending off had little impact on the contest with the visitors truly threatening just once throughout the match.
Billy Sharp was isolated up front while El Hadji Diouf was frustrated in his attempts to take possession in deep lying areas.
Barnsley were afforded far too much of the ball throughout the match, ensuring a comfortable life with the chance for the more creative of their players such as Jacob Butterfield to threaten far too often.
Butterfield fired the first warning shot of the match when he drilled a shot from 25 yards just five minutes in.
Debutant Rovers keeper Carl Ikeme seemed to have trouble reading the flight of the ball and tipped out for a corner.
Ikeme was called into action again a few moments later when Ricardo Vaz Te cut inside past James O’Connor on the left and fired towards the near post.
Rovers did taste their first real spell of possession and an even period of play followed until the Reds opened the scoring on the half hour.
A long clearance from the back sparked a tussle between Craig Davies and Shelton Martis which sent the Rovers defender tumbling and let the former Chesterfield striker in to finish under Ikeme from ten yards.
The tussle seemed to aggravate a groin injury for Martis and he was withdrawn for Lockwood shortly after the goal.
Rovers did not threaten Barnsley keeper Luke Steele once during the first half and rarely entered the final third.
And while they emerged a little brighter after the break, the renewed effort did not really last.
Vaz Te and the impressive Butterfield both produced long range efforts without truly testing Ikeme.
Rovers best chance came just before the hour mark when they were awarded a kick on the edge of the area.
Substitute Giles Barnes flicked on Brian Stock’s free kick and the ball fell into space between Steele and George Friend who lunged in but could not find the target.
Stock sent the resulting corner kick deep and Lockwood got under the ball and could only head out for a goal kick.
That was to prove as good as it got for Rovers with Barnsley extending their lead a few minutes later.
Matt Done surged into the area and clipped a cross back to Davies who flicked the ball over Ikeme with the outside of his boot.
A solo effort from Stock followed a minute later as the Wales midfielder skipped into the area but Steele tipped his near post effort wide.
Lockwood was dismissed with 18 minutes to go after Foster crashed to the floor following a challenge.
Both managers admitted afterwards they thought referee Kevin Friend had not seen the actual incident and responded to the crowd reaction.
Davies seemed desperate to grab his hat trick and shot on sight but Ikeme was never truly troubled by the forward.
Barnsley really should have added to their lead in the dying moments.
Jim O’Brien darted into the area and crashed a shot off the post with the ball trickling across the face of goal where substitute Danny Haynes scuffed a shot with the net at his mercy and a clearance was made before Davies could take advantage.
Simon Gillett drilled a shot from 25 yards which flew past the left hand post in what registered as a rare chance for Rovers.
The final say went to the hosts with Butterfield striking a free kick from the edge of the area which he could not keep down.
Boos rang out from the remainder of Rovers 2000-plus support at the final whistle while several fans stayed to bombard the players with angry jeers as they headed down the tunnel.
Barnsley: Luke Steele, Bobby Hassell, Jay McEveley, Stephen Foster, Jim O’Brien, Craig Davies, Matt Done, David Perkins, Jimmy McNulty, Ricardo Vaz Te (Danny Haynes, 84), Jacob Butterfield
Subs not used: David Preece, Scott Wiseman, Miles Addison, Rob Edwards.
Rovers: Carl Ikeme, James O’Connor, Richard Naylor, Shelton Martis (Adam Lockwood, 33), Herita Ilunga, Brian Stock (Kyle Bennett, 78), George Friend, Simon Gillett, James Coppinger (Giles Barnes, 52), El Hadji Diouf, Billy Sharp.
Subs not used: Neil Sullivan, James Hayter
Referee: Kevin Friend