It took London Wasps a while to warm up at a chilly Adams Park but a clinical second half display secured the try scoring bonus point for the former European Champions.

In an uneventful first forty minutes it was the visitors who would have taken more heart at the break.

On the back of three consecutive European defeats the Dragons played most of the rugby in High Wycombe and deserved a better half time score line than 3-3.

Wasps failed to find their feet early on and had to settle for a Dave Walder penalty in reply to Matthew Jones’ three points.

The second half start much brighter and Wasps took an immediate lead after the Dragon wing Adam Hughes took Joe Simpson out in the air and Walder kicked the three points on offer.

Simpson, who signed a new three year deal for the London side earlier this week, was the inspiration which kick started the hosts game.

Jinking runs from the scrum half put Wasps on the front foot and he linked up with his half-back partner Walder to set up the first try.

Walder made his way through a crowded midfield and took his troops up to the Dragons twenty-two. The ball was spread wide one way and then brought back across field before Joe Ward powered his way over.

Walder was on target with the conversion and then kicked along range penalty to give his side a 13-point lead.

With their tails up Wasps looked like a changed side and Mark van Gisbergen and then Tom Varndell both crossed for well worked converted tries.

With a 27-point lead the hosts went hunting for a try-bonus point and it wasn’t long until they wrapped it up. A powerful scrum gave Number 8 Will Matthews time at the base and he simply offloaded to replacement scrum-half Nic Berry who crashed over. The additional two points were routine for Walder.

Welsh winger Aled Brew scored a late consolation for the Dragons.