The home side were full value for a victory that saw them score five tries, three in the opening half at which point they led 22-3.

Munster did get an early enough second half try that looked like it might kick start a revival but the error littered nature of their display put paid to that possibility with the home side taking full advantage.

Those errors started right from Ian Keatley's kick off when the normally ultra-safe James Coughlan knocked on - although he was caught unawares - and less than three minutes had elapsed when Ludovico Nitoglia was dotting down under the Munster posts, Brendan Williams breaching slipshod defence to set the move in motion.

And despite playing into a stiff breeze, Treviso enjoyed territorial advantage and extended their lead in the 29th minute again off turnover ball with number 7 Filippo Giusti getting over off a maul.

Keatley got Munster on the board with a penalty from the ten metre line four minutes later but Munster failed to use this as a springboard, instead Gideon La Grange applying the finishing touch after Denis Hurley failed to deal with a clever Alberto di Bernardo cross field kick.

The last action of the half saw di Bernardo land an easy penalty when Felix Jones was caught in possession and again that was a score that originated when Munster turned over possession when attacking inside the Treviso 22. A little more cuteness when they broke free and Treviso could have had the bonus try in the bag before the break.

The Munster scrum was one area Munster got right and it led to their try in the 49th minute when Stefano Traversi - who had replaced Neil Paterson (hamstring) early in the opening half - losing patience after the under pressure Italian scrum buckled yet again. The official also saw fit to yellow card someone and strangely it was the Treviso hooker Giovanni Maistri who was given his marching orders.

Not that it make much difference to either side, Munster unable to take advantage, Treviso not appearing too disadvantaged with number 8 Christian Loamanu upping a towering display. Though Munster were a tad unfortunate that a pass that sent Paddy Butler clear and the line at his mercy was deemed forward.

Ultimately it was incidents like that plus a plethora of unforced errors that sealed their fate and defence again proved their achillies heel in the 60th minute with scrum half, the lively Fabio Semenzato scampering down the standside touchline for the bonus try.

The icing on the cake for the home supporters came when Giulio Toniolatti slipped tackles on the far side to score the fifth try before Munster could make their way dejectedly back to the dressing room.

Munster: F Jones; D Hurley, C Laulala (I Dineen 65th min) J Downey (JJ Hanrahan 52nd min), J Murphy; I Keatley, D Williams (C Sheridan 65th min); W du Preez (J Ryan 73rd min), M Sherry capt (D Varley 73rd min), S Archer (55th min); I Nagle (D Foley min), B Holland; P Butler, T O'Donnell, J Coughlan (CJ Stander).

Benetton Treviso: B Williams; L Nitoglia, A Pratichetti, G La Grange, G Toniolatti; A Di Bernardo, F Semenzato; M Rizzo, G Maistri, J Roux; V Bernabo, C Van Zyl capt; D Budd, F Giusti, C Loamanu. Replacements: F Sbaraglini, M Muccignat, P Di Santo, E Ceccato, M Fuser, M Filippicci, J Ambrosini, T Iannone.

Referee: N Paterson (S Traversi).