|Treviso (3) 3|
|Pens: Tommaso (2)|
|Scarlets (0) 22|
|Tries: Kruger, Van der Merwe, Evans Con: Patchell, Thomas Pen: Patchell|
Scarlets claimed their second win of the season against a combative Treviso side in Italy.
Tommaso Allan's penalty was the only score of a first half when Scarlets failed to capitalise on Alberto de Marchi's yellow card.
After the break, Rhys Patchell and Allan exchanged penalties before Werner Kruger crossed for the opening try.
Further touchdowns by DTH van der Merwe and Steff Evans saw the Welsh region pull away and move into seventh place.
The result was Scarlets' second successive win after defeats in their first three games of the Pro12 season.
Wales tight-head Samson Lee made his first start of the season, but was replaced at half-time by Kruger, whose try calmed Scarlets nerves.
Wing Van der Merwe's score made the game safe before Evans pinched Treviso possession as the Italians looked for a losing bonus point, and he raced clear to score with the clock already in the red.
The win is a confidence booster ahead of next week's Welsh derby against Newport Gwent Dragons at Parc y Scarlets.
Benetton Treviso: Jayden Hayward, Angelo Esposito, Tommaso Benvenuti, Alberto Sgarbi ( C ), Luke McLean; Tommaso Allan, Giorgio Bronzini; Alberto De Marchi, Ornel Gega, Simone Ferrari, Marco Fuser, Filo Paulo, Francesco Minto, Dean Budd, Abraham Steyn.
Replacements: Luca Bigi, Matteo Zanusso, Cherif Traore, Filippo Gerosa, Marco Lazzaroni, Tito Tebaldi, Ian McKinley, Andrea Buondonno.
Scarlets: Liam Williams, DTH van der Merwe, Hadleigh Parkes, Scott Williams, Steff Evans; Rhys Patchell, Gareth Davies; Wyn Jones, Ken Owens [c], Samson Lee, Lewis Rawlins, David Bulbring, Aaron Shingler, 7 James Davies, John Barclay.
Replacements: Ryan Elias, Luke Garrett, Werner Kruger, Rynier Bernardo, Morgan Allen, Aled Davies, Aled Thomas, Steff Hughes
Referee: Gary Conway (IRFU, 23rd competition game)
Assistant Referees: Nigel Correll (IRFU), Simone Boaretto (FIR)
Citing Commissioner: Francesco Grillo (FIR)