Pat Lam's Connacht side produced a clinical display to put Treviso to the sword running in seven tries in the process.
Ian McKinley gave Treviso an early 3-0 lead but that's as good as it got for the visitors.
Tom McCartney scored the first try for the home side, powering over from close range.
Connacht's Tom McCartney scores the first try of the game
Mandatory Credit ©INPHO/Ryan Byrne
Danie Poolman, a late replacement for Matt Healy, crossed for Connacht's second try as the game began to open up.
Connacht's Danie Poolman scores their second try of the game
Mandatory Credit ©INPHO/Ryan Byrne
McCartney scored the province's third try before Denis Buckley secured the bonus point before half-time.
Connacht's Denis Buckely scores their fourth try of the game
Mandatory Credit ©INPHO/Ryan Byrne
John Cooney converted all four tries to give the westerners a 28-3 lead at half time.
In the second half, Connacht continued to turn the screw with Cooney, Roux and Carty rounding up the scoring for the home side. Flammini touched down for a consolation try for the Italians.
Connacht's John Cooney scores a try
Mandatory Credit ©INPHO/Ryan Byrne
Thanks for the great support once again!We're back at the Sportsground on December 17th for the visit of @Wasps in the @ChampionsCup #CRLive
— Connacht Rugby (@connachtrugby) December 3, 2016
Download the brand new OffTheBall App in the Play Store & App Store right now! We've got you covered!
Subscribe to OffTheBall's YouTube channel for more videos, like us on Facebook or follow us on Twitter for the latest sporting news and content.