Dunn’s home run powers Arizona

PHOENIX -- Adam Dunn hit his National League-leading 34th home run, his second in as many games, and the Arizona Diamondbacks beat the San Diego Padres, 8-6, Wednesday night.

Chris Snyder also homered for the Diamondbacks, who have won five of seven games to maintain their lead over the second-place Dodgers in the National League West.

Kevin Kouzmanoff and Jody Gerut homered for the Padres, who have lost six of eight games.

Right-hander Dan Haren (14-6) struggled through a six-inning stint but won for the seventh time in eight outings.

Haren gave up five runs and a season-worst 11 hits. He struck out four and did not walk a batter for the eighth time in 26 starts.

San Diego’s Jake Peavy, last season’s NL Cy Young Award winner, also was nowhere close to top form. Peavy (9-9) gave up a season-high six runs -- five earned -- and five hits over five innings with four walks and two strikeouts.