Dobson is now just three short of 100 Super League conversions this season
Hull KR climbed to sixth in the Super League table as Michael Dobson inspired them to one of their most comfortable victories of the season at The Willows.
Clint Newton and Shaun Briscoe both ran in two tries apiece, while impressive scrum-half Dobson, who landed six kicks, weighed in with a 16-point haul.
The first of Rovers' eight tries came after just two minutes via Liam Colbon.
But it was an astonishing blitz of five tries in 12 second-half minutes which killed off struggling Salford.
After Newton had run in Rovers' second try, Rob Parker had came off the bench to pull one back five minutes before the break.
But, on the resumption, on-loan Wigan centre Josh Charnley, second row Scott Murrell, Newton (with his second), the outstanding Dobson and full-back Briscoe all crossed.
Front-row forwards Ray Cashmere, who was later placed on report for an alleged 'chicken-wing' tackle, and Matty Smith did respond with two tries in as many minutes late on.
But Briscoe had the final word with his second try seven minutes from time for a Rovers side who have now lost only one of their last eight Super League matches.
After being thrashed 60-16 in their last outing at the Racecourse Ground against Crusaders a fortnight ago, Salford once again produced a woeful defensive performance.
Rovers welcomed back Michael Vella from injury and Ben Cockayne from suspension but they were without 12-try joint top-scorer Kris Welham, Jake Webster, Joel Clinton and Mike Ratu, and lost Ben Galea with a scratched eyeball.
Salford handed 17-year-old hooker Gareth Owen his debut off the bench, while veteran Malcolm Alker, retiring at the end of the season to become assistant coach at The Willows, was sidelined with a neck problem.
The Reds, beaten 30-12 at Hull KR on the opening day of the season, were also missing Daniel Holdsworth, Mark Henry, Ian Sibbit, Luke Adamson, Ryan Boyle and suspended Jeremy Smith.
Salford, whose only challenge left this season is to avoid finishing bottom, made a dreadful start.
Dobson's crossfield kick caused chaos in the defence and Colbon strolled over in the corner.
Rovers' defence was rarely threatened and it was no surprise when they added a second try after 28 minutes, Newton racing on to Dobson's kick, the Australian scrum-half landing his second conversion to make it 12-0.
Against the run of play, the Reds clawed back to 12-6 four minutes before the break when Owen produced a superb pass to send fellow sub Parker over.
But Hull KR restored their 12-point lead four minutes after the restart when Charnley took Dobson's pass to go over for a converted try.
Rovers then made sure of victory with further touchdowns from Murrell, Newton, Dobson and Briscoe.
The Reds did manage to stem the tide through Cashmere and Smith but Karl Fitzpatrick's blunder behind his own try line gifted Briscoe a second. And only a superb Jodie Broughton tackle denied Briscoe his hat-trick.
Hull KR boss Justin Morgan said: "We were not consistent enough for me to say we were flawless. But there were enough indications to encourage me with two games left before the play-offs.
"Dobbo did a great job for us even though he won't be pleased with some parts of his display because of the high standards he sets. He and Scott Murrell made some good decisions with their kick selection.
"Michael has matured hugely over the last two or three years. Some people don't realise the stress placed on scrum-halves. His organisational skills impressed me.
Salford boss Shaun McRae said: "It was better than our last performance but still nowhere near good enough. We came up against a highly motivated team who want to do well in the play-offs.
"We lacked a cutting edge when we needed it and lost energy in the hot conditions when we did not have the ball for long spells.
"The damage was done in the first 20 minutes of the second half when we only had the ball for three of the 18 sets of six."
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