Gloucester boss Dean Ryan:
"I don't think that's best we've seen from Gloucester in the opening half - the game was pretty much over by half-time.
"Adams Park is a tough place to come back from such a big deficit. We got caught in the opening 40 minutes with a lack of decision making.
"Wasps were preying on mistakes and the game started to run away from us before half-time."
Wasps: Van Gisbergen; Sackey, Waldouck, Lewsey, Voyce; King, Amor; Payne, Ibanez, Vickery, Purdy, Palmer, Leo, O'Connor, Worsley.
Replacements: Ward, Bracken, Skivington, Haskell, Reddan, Dallaglio, Cipriani.
Gloucester: Balshaw; Simpson-Daniel, Tindall, Allen, Foster; Walker, Richards; Collazo, Azam, Califano, Bortolami, Brown, Buxton, Hazell, Narraway.
Replacements: M. Davies, Nieto, Eustace, Forrester, Lawson, Lamb, Morgan.
Referee: Wayne Barnes (England)