Derek Lowe (8-10) allowed six runs — four earned — and four hits over five innings and struck out four. It was the right-hander’s first outing in 10 days, the result of irritation in his left hip. It forced him to miss a regular turn in the rotation for the first time in his 211 career starts.

“I was a little slow the first couple of innings and I dug us in a pretty big hole out there,” said Lowe, who is 0-4 with a 5.00 ERA in seven starts since his last win on June 22. “It was more getting over the mental feeling of being in a game. It’s frustrating. It’s been an eternity since I’ve won, and I’m trying to get back on a roll.”

The Dodgers’ defense deserted Lowe in the fifth inning, when Arizona came up with four runs to extend its lead to 6-1. The first four batters all reached base without hitting the ball out of the infield, one of them on a throwing error by rookie first baseman James Loney.

Montero made it 8-1 in the sixth with his seventh homer after a single by rookie Mark Reynolds, who made the key defensive play of the game back in the fourth when he charged in from third base on a two-out bunt by Ethier and threw him out by a step to help Hernandez escape a bases-loaded jam.

One night after Chris Snyder’s eighth-inning homer helped Arizona beat the Dodgers 1-0, Byrnes gave the Diamondbacks a quick 2-0 lead with his 17th of the season. It came on a 1-1 pitch after a walk to Orlando Hudson.

“It’s tough to look for anything else other than a sinker when you’re facing Derek Lowe. I mean, you have to because he throws it almost 80 percent of the time,” said Byrnes, who is 11-for-24 lifetime against Lowe. “I was looking for something down in the zone and I got it. I wouldn’t necessarily classify it as a terrible pitch by him. It’s just that every now and then you get lucky and run into one.”

Notes: The game was only in the second inning when the news of Bonds’ historic home run reached Dodger Stadium. But the video crew never showed it to the crowd of 52,921 — which did get to see a replay of Alex Rodriguez’s 500th homer. ... Lowe has allowed 11 unearned runs, the most on the Dodgers’ staff and two more than he did last year. He has surrendered 84 unearned runs since the start of the 2003 season. ... Kent missed his fifth straight game because of a strained left hamstring. ... Diamondbacks starting pitchers have recorded an NL-leading 507 strikeouts despite only 72 by Randy Johnson, who underwent season-ending back surgery on Friday. ... Lowe has not reached the sixth inning in any of his last three starts. ... Arizona RF Justin Upton and Dodgers OF Delwyn Young each got his first major league hit. Young did it as a pinch-hitter.

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