Chris Fusaro went over for a try

Scarlets win over Munster means Warriors move above the Irishmen into the top spot after cruising to a 42-10 win over Zebre at Stadio Sergio Lanfranchi

For Glasgow, Matt Fagerson (2), Chris Fusaro, Stafford McDowall, Ruaridh Jackson and Tim Swinson scored tries, and Adam Hastings kicked six conversion.

Zebre's points came via a try from Tommaso Castello while Francois Brummer added a conversion and Carlo Canna slotted a penalty.

Canna kicked the hosts into an early lead but from the restart it was the Warriors who recovered from Adam Hastings' kick, eventually setting up Matt Fagerson to score from a powerful drive.

And just as Zebre looked to build up some momentum with the ball in hand, Warriors skipper Chris Fusaro stole in behind an unmanned ruck to nick the ball and take it 60m uncontested for a try.

They made it three when a confidently won line-out saw Stafford McDowall brushing past a couple of tacklers while Zebre anticipated a maul, forging a path to his first score in a Glasgow shirt.

Jackson sealed the bonus point for the visitors on his landmark appearance for the side, latching onto Adam Hastings' deft chip through as he juggled a favourable bounce to dot down.

Fagerson doubled up on the half hour, Oli Kebble with Zebre defenders wrapped round his legs, stayed on his feet just long enough to give an offload to the 20-year-old who charged through a gap to cross.

Half-time came and went, and when Canna was shown yellow at the start of the second 40, the Warriors were once again in the ascendancy, Tim Swinson carrying at the back of a line-out maul to crash over down the left.

The hosts got on the board when captain Castello wriggled past Scott Cummings after Zebre had built up the phases and punched a hole in the Warriors defence, the centre taking advantage to cross.

After good Zebre pressure, Canna saw red late when he was on the wrong end of a late D'arcy Rae tackle before kicking out in retaliation and the hosts had their wings clipped, but fought to the death nonetheless.