Ruaridh Jackson kicked Glasgow's only points in a poor display from the Warriors

The Warriors never looked up for the game and have left themselves with an uphill struggle to secure a home PRO12 play-off.

The home side dominated the opening quarter at the Parc y Scarlets and built a very healthy lead thanks to a pair of penalties from fly-half Owen Williams and a try from Ken Owens. The hooker put his side in a strong position with a surging run to within metres of the opposition line and then finished the job off himself after a series of pick and drives.

Ruaridh Jackson did get Glasgow on the scoreboard with a couple of penalties of his own as the first half wore on but Owen Williams slotted over an instinctive drop-goal in between the two to make it 16-6 at the interval.

The Welshmen sealed the victory early in the second half as good hands from Owen Williams and George North, who is on his way to the English Premiership with Northampton, gave full-back Liam Williams a simple opportunity to score.

Owen Williams added six more points with the boot but the Scarlets didn't go hell for leather in search of a bonus point, instead settling for taking just the four points from a lacklustre Warriors side as they battle with the Ospreys for the final playoff spot.

Speaking to www.glasgowwarriors.org Gregor Townsend said: "We were well below our best tonight. We were playing against a team that kept up their performance for 80 minutes but we started poorly and weren't able to snap out of it during the game.

“I've not seen any of those characteristics from the players that they showed here. We've got a group than normally fight for everything but they didn't do it enough tonight. It was our worst performance of the season and we’ll need to pick ourselves up for the game next week against the Ospreys.

"It was a huge game for us and we got a sharp reminder that if you drop your standards you can get badly beaten. We're all professional so we know that 80 minutes at the weekend is very important. No matter how you prepare and what you say it's what you do in that 80 minutes that defines you as a professional rugby player."