CORVALLIS, Ore. — Taylor Rochestie had a career-high 24 points, Derrick Low added 21 and No. 21 Washington State handed Oregon State its 14th straight loss, 70-57 tonight.

Lathen Wallace had 13 points for the Beavers (6-18, 0-12 Pac-10), whose losing streak matched the 1995-96 team for the longest in team history. Marcel Jones added 10 points, all in the second half.

Robbie Cowgill and Aron Baynes had nine points for the Cougars (19-5, 7-5), who entered the game holding opponents to 55.5 points a game, third best in the nation. They held the Beavers to 32.1 percent shooting.

The game was tied at 18, but the Cougars went on a 11-3 run before halftime. The Beavers shot just 22.2 percent in the first half, making only one field goal in the last 10 minutes.

The Beavers focused their defensive effort on stifling Baynes, the Cougars' big man, and he scored nine points before fouling out in the second half, but guards Low and Rochestie had success coming off screens and getting open looks.

Oregon State got as close as 37-31, on a 3-pointer from Wallace, but Low hit a 3 and the Cougars were off on a 10-4 run. They soon led 56-41. A healthy crowd of Washington State fans stood and applauded as the Cougars dribbled out the last few seconds of the game.

Washington State won its first 14 games and was ranked fourth in the country in late December but ran into trouble with three straight home losses, to Stanford, California and UCLA. The Cougars rebounded with a 74-50 win over USC on Saturday.

Kyle Weaver, the Cougars' second-leading scorer at 12.7 points a game, had five points. He didn't score until 7:02 left in the game.

Rickey Claitt had nine points off the bench for Oregon State. Sean Carter had nine rebounds. The two teams combined to shoot 57 free throws.

The Beavers have owned Washington State at Gill Coliseum in recent years, winning eight of the last nine matchups coming into the game, but the Beavers are enduring a nightmare season that has included the dismissal of sixth-year coach Jay John midseason and installation of assistant Kevin Mouton as interim coach.

Oregon State has been particularly ineffective at home, where their previous four conference losses have come by an average margin of 19.3 points.

The Cougars beat Oregon State 69-46 Jan. 17 in Pullman, Wash., four days before John was fired.