Two-goal Ryan Bowman played the starring role as Hereford dumped Graham Turner's Shrewsbury out of the FA Cup.
Will Evans cashed in on a defensive shambles to fire the Bulls ahead from 12 yards after just three minutes.
Bowman doubled their lead with a 25-yard right-foot screamer before Luke Summerfield pulled one back from a disputed low free-kick.
Graham Turner at Hereford
Turner was named Hereford manager in 1995 and became owner and chairman three years later. In 2010, he left Edgar Street to become Shrewsbury boss
But ex-Bulls supremo Turner's misery was complete when Bowman was fouled by Lee Collins and scored the penalty.
Apart from the much-heralded return of Turner to cash-strapped Hereford, four of his team - Collins, Darren Jones, Rob Purdie and Paul Parry - were also up against their old club.
But, on a ground where Turner had recorded 2-0 wins on his two previous league trips back with Shrewsbury, it was the current crop of Hereford players who ended up outshining their Edgar Street predecessors, as the League One side flopped badly on the day against their Blue Square Bet Premier hosts.
Town keeper Chris Weale had already made an early save from Harry Pell before Evans was allowed an absurd amount of time inside the box to fire Town's opener.
“I'm sure the Shrewsbury supporters will be hurting going back up the A49 - but not half as much as me”
Graham TurnerShrewsbury manager
And, although Town top scorer Marvin Morgan's left-foot shot hit the Bulls' right post, Bowman then doubled Hereford's lead before the home side twice more went close through Evans, on the angle from 12 yards, and Sam Clucas's long-range effort.
Summerfield gave Town hope when he drilled his free-kick into the bottom left corner after Pell was adjudged to have fouled Asa Hall.
And, after Jon Taylor and Darren Jones went close for the visitors, Summerfield then went close to equalising on 59 minutes when his right-foot shot clipped the outside of the right post.
But, when Bowman went down under a challenge from Collins on 72 minutes, referee Gary Sutton adjudged that it was a penalty - and the Bulls top scorer fired his ninth goal of the campaign to book his team's place in round two.
VIEWS FROM THE DRESSING ROOM
Hereford manager Martin Foyle told BBC Hereford & Worcester:
"There was probably more pressure on us in the previous round against FC United. But this was still an important win for us as a club.
"There's been a lot of doom and gloom about. Telling the players before the Southport game that they weren't going to get paid was hard, but this might just have taken us to the right side.
"There's still loads of work to do. But there was a good crowd, a good atmosphere and the boys certainly played a part in it.
"The first 20 minutes we were out of the box and Ryan Bowman led the line exceptionally up front for a 20-year-old. The ref then gave them the lifeline with a free kick which was never a foul, but we dug in and when they came at us in the second half our back four were fantastic."
Shrewsbury Town manager Graham Turner told BBC Radio Shropshire:
"You can't give two-goal starts, no matter what standard the team you're playing. It lifts the crowd, it lifts the players, we go down a notch or two and we're chasing the game after that.
"We've had a bit of bad luck with the penalty decision and we've hit the woodwork twice but that counts for nothing.
"It was defensively a very poor performance. We're leaking goals, we're out of the FA Cup and it's devastating.
"It's a local derby and I'm sure the Shrewsbury supporters will be hurting going back up the A49 - but not half as much as me."
Full Time The game is over, as the referee blows his whistle.
Andy Gallinagh challenges Paul Parry unfairly and gives away a free kick. Robert Purdie takes the direct free kick.
Lee Collins produces a cross, Chris Todd manages to make a clearance.
90:00 +0:22 Substitution
Substitution Simon Clist is brought on as a substitute for Samuel Clucas.
Ryan Bowman is ruled offside. Robert Purdie restarts play with the free kick.
Jon Taylor takes a shot. James Bittner makes a fantastic save.
The ball is swung over by Robert Purdie, Stefan Stam manages to make a clearance.
Substitution (Hereford) makes a substitution, with Luke Graham coming on for Joshua O'Keefe.
Foul by Harry Pell on Jamie Proctor, free kick awarded. Direct free kick taken by Robert Purdie.
Foul by Jamie Proctor on Chris Todd, free kick awarded. Direct free kick taken by James Bittner.
Substitution Aaron Wildig comes on in place of Asa Hall.
Marvin Morgan takes a shot. Stefan Stam gets a block in.
The ball is sent over by Jermaine Grandison, clearance made by Brian Smikle.
Foul by Asa Hall on Harry Pell, free kick awarded. Stefan Stam takes the direct free kick.
Asa Hall produces a left-footed shot from just outside the penalty box that goes wide left of the target.
Jon Taylor has an effort at goal from just inside the box that misses to the left of the target.
Outswinging corner taken by Jon Taylor from the right by-line played to the near post, Andy Gallinagh makes a clearance.
Outswinging corner taken right-footed by Brian Smikle from the right by-line, Jermaine Grandison makes a clearance.
The ball is swung over by Harry Pell.
Outswinging corner taken right-footed by Jon Taylor from the right by-line.
Brian Smikle produces a cross, clearance by Jermaine Grandison.
72:32 Goal scored
Goal! - Ryan Bowman - Hereford 3 - 1 Shrewsbury Penalty taken right-footed by Ryan Bowman and scored. Hereford 3-1 Shrewsbury.
Lee Collins challenges Ryan Bowman unfairly and gives away a Penalty.
The ball is delivered by Jermaine Grandison.
Harry Pell produces a right-footed shot from just outside the box that goes wide left of the goal.
Free kick taken by Stefan Stam.
Substitution Jamie Proctor joins the action as a substitute, replacing Jeremy Helan.
Booking Darren Jones goes into the book.
Darren Jones concedes a free kick for a foul on Ryan Bowman.
Darren Jones takes a shot. Blocked by Chris Todd.
Direct free kick taken by Chris Weale.
Substitution Brian Smikle replaces James McQuilkin.
Free kick awarded for an unfair challenge on Lee Collins by Samuel Clucas.
The ball is delivered by Jon Taylor, Paul Parry has a headed effort at goal from close in which goes wide right of the target.
Free kick awarded for an unfair challenge on Harry Pell by Jeremy Helan. Direct free kick taken by James Bittner.
Jeremy Helan delivers the ball, Joshua O'Keefe manages to make a clearance.
Unfair challenge on Lee Collins by Ryan Bowman results in a free kick. Chris Weale takes the free kick.
The ball is delivered by Asa Hall, clearance made by Stefan Stam.
Centre by Jon Taylor, Luke Summerfield takes a shot from outside the area that bounces off the post.
Booking Caution for Will Evans.
Will Evans gives away a free kick for an unfair challenge on Robert Purdie.
Free kick awarded for an unfair challenge on Ryan Bowman by Darren Jones. Strike on goal comes in from James McQuilkin from the free kick, save by Chris Weale.
Outswinging corner taken left-footed by Paul Parry from the left by-line, Darren Jones takes a shot. Blocked by Joshua O'Keefe.
Jermaine Grandison delivers the ball, Andy Gallinagh manages to make a clearance.
Chris Weale takes the free kick.
Booking Booking for Joshua O'Keefe.
Free kick awarded for a foul by Joshua O'Keefe on Luke Summerfield.
The ball is swung over by Joe Heath, Robert Purdie gets a block in.
Unfair challenge on Ryan Bowman by Jermaine Grandison results in a free kick. The free kick is delivered left-footed by Samuel Clucas from left wing, clearance made by Jon Taylor.
The match restarts for the second half.
45:00 +2:04 Half time
Half Time The ref blows to end the first period.
Paul Parry concedes a free kick for a foul on Chris Todd. Direct free kick taken by James Bittner.
Shot by Darren Jones. Save made by James Bittner.
Long range shot by Robert Purdie goes wide right of the target.
Free kick taken by Jon Taylor.
Booking Harry Pell receives a yellow card.
Free kick awarded for an unfair challenge on Jeremy Helan by Harry Pell.
Corner taken left-footed by Jeremy Helan to the near post, clearance by Joe Heath.
Jermaine Grandison gives away a free kick for an unfair challenge on Ryan Bowman. James Bittner restarts play with the free kick.
Marvin Morgan fouled by Harry Pell, the ref awards a free kick. Free kick crossed right-footed by Robert Purdie.
Header from close in by Asa Hall misses to the right of the target.
Free kick awarded for a foul by Joshua O'Keefe on Asa Hall. Free kick taken by Lee Collins.
The ball is sent over by Jon Taylor, save made by James Bittner.
Jeremy Helan crosses the ball, clearance by Andy Gallinagh.
Inswinging corner taken left-footed by Jeremy Helan played to the near post, Shot on goal by Marvin Morgan from inside the box goes harmlessly over the target.
Outswinging corner taken right-footed by Jon Taylor, save made by James Bittner.
The ball is delivered by Jermaine Grandison, Andy Gallinagh manages to make a clearance.
29:44 Goal scored
Goal! - Luke Summerfield - Hereford 2 - 1 Shrewsbury Luke Summerfield finds the net with a goal direct from the free kick from just outside the penalty area to the bottom right corner of the goal. Hereford 2-1 Shrewsbury.
Free kick awarded for an unfair challenge on Asa Hall by Harry Pell.
Outswinging corner taken right-footed by Jon Taylor from the right by-line, clearance by Andy Gallinagh.
Jon Taylor delivers the ball.
Samuel Clucas produces a drilled left-footed shot from 35 yards and missed to the left of the goal.
Foul by Jeremy Helan on Andy Gallinagh, free kick awarded. Andy Gallinagh restarts play with the free kick.
Corner taken by Samuel Clucas from the left by-line, Will Evans has an effort at goal from close range which goes wide right of the target.
Foul by Darren Jones on Ryan Bowman, free kick awarded. The free kick is delivered right-footed by Will Evans from left channel, clearance made by Darren Jones.
Jon Taylor sends in a cross, save by James Bittner.
Outswinging corner taken right-footed by James McQuilkin.
Darren Jones gives away a free kick for an unfair challenge on Ryan Bowman. Free kick crossed right-footed by James McQuilkin, Marvin Morgan makes a clearance.
Header from close range by Marvin Morgan misses to the right of the goal.
Corner taken by Samuel Clucas from the left by-line to the near post, save by Chris Weale.
Centre by Samuel Clucas, Darren Jones manages to make a clearance.
Header by Darren Jones from deep inside the penalty area misses to the right of the target.
Ryan Bowman is penalised for a handball. Darren Jones takes the free kick.
Joshua O'Keefe concedes a free kick for a foul on Lee Collins. Darren Jones takes the direct free kick.
The ball is delivered by Jon Taylor.
Assist by James Bittner.
11:24 Goal scored
Goal! - Ryan Bowman - Hereford 2 - 0 Shrewsbury Ryan Bowman grabs a goal from just outside the area to the top left corner of the goal. Hereford 2-0 Shrewsbury.
Effort from just outside the penalty box by Marvin Morgan strikes the post.
Assist on the goal came from Chris Todd.
2:35 Goal scored
Goal! - Will Evans - Hereford 1 - 0 Shrewsbury Will Evans scores a goal from inside the box to the bottom left corner of the goal. Hereford 1-0 Shrewsbury.
Corner taken left-footed by Joshua O'Keefe.
Will Evans takes a shot. Fantastic save by Chris Weale.
Asa Hall concedes a free kick for a foul on Ryan Bowman. Direct free kick taken by Harry Pell.
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