Chris Capuano fired six strong innings and the Los Angeles Dodgers belted three homers Monday in their 6-1 win over Arizona. Capuano (6-1) stifled the Diamondbacks on one run, allowing four hits while walking one and striking out five as the National League West-leading Dodgers rolled to their fourth straight win. Matt Treanor\'s two-run blast in the second inning staked Los Angeles to a lead it wouldn\'t relinquish, while James Loney also clouted a two-run homer and Andre Ethier added a solo shot in the victory. Arizona\'s Patrick Corbin (2-3) was saddled with the loss after surrendering a pair of runs on six hits over 5 1/3 innings. Aaron Hill drove in the D-Backs\' only run.