And while the curly-haired flanker made little impact, coming off the bench with nine minutes remaining, it was his Azzurri colleague Luciano Orquera who orchestrated the win.
The fly-half was flawless from the kicking tee slotting nine penalties from as many attempts to hand the RaboDirect PRO12 bottom side a first success since beating Edinburgh in September.
Treviso, on the other hand, missed the chance to boost their play-off chances as they slumped to only their second away defeat in the league this season.
The visiting side managed the only try, a penalty effort late on, but could not even come away with a losing bonus point as their indiscipline cost them dear.
Aironi made the quicker start and took an early lead as Orquera slotted over a second-minute penalty.
That was cancelled out on the quarter hour by Willem de Waal as Treviso looked to be edging their way back into the game only to concede another penalty, expertly converted by Orquera to allow Aironi to retake the lead.
When Italy full-back Andrea Masi was sin-binned for a dangerous tackle on Gonzalo Padrò half an hour into the encounter, de Waal missed the chance to level things up, but he made amends two minutes later.
However in the last eight minutes of the first half Aironi took control of the game with three penalties from Orquera giving them a 15-6 lead at the break.
Things didn't improve for the visitors in the second half as Orquera added three more penalties to stretch Aironi into an 18-point lead after an hour.
Former Italy captain Marco Bortolami was also sent to the bin with 15 minutes remaining and Treviso looked like they might mount a comeback when they were awarded a penalty try at the next scrum.
However that was as good as it got for Treviso with Orquera adding another penalty just for good measure to seal the win.
The two sides meet again on New Year's Eve at the Stadio Monigo where Treviso will look to gain some revenge on home soil.
|Aironi Rugby Score Card|
|Benetton Treviso Score Card|
|Alberto di Bernardo||1||2|
|Willem de Waal||2||6|