WHAT IT MEANS: Ike Davis belted a pair of homers and drove in a career-high five runs to take over the team RBI lead and Jenrry Mejia earned his first major league victory as the Mets won their fourth straight home game, 6-2 against the Pittsburgh Pirates on Monday night.

Davis -- who went deep against starter Kyle McPherson and reliever Jeff Karstens in consecutive innings as the Mets built a 6-0 lead -- became only the third first baseman in franchise history to reach the 30-homer plateau, joining Carlos Delgado (2006 and ’08) and Dave Kingman (1982). Overall, Davis became the 16^th player in Mets history to reach 30 homers.

Davis has 18 homers since the All-Star break, which ranks second in the National League during that span. San Diego’s Chase Headley is the leader with 21.

It was Davis’ third multi-homer game of the season. He went deep three times on July 28 against the Arizona Diamondbacks and twice on Aug. 26 against the Houston Astros.

Davis now has a team-leading 88 RBIs. Wright, whose run-scoring single against Karstens preceded Davis’ three-run homer in the fifth, has 85 RBIs.

Wright went 1-for-3 with a walk. He pulled within two hits of matching Ed Kranepool’s franchise-record 1,418 career hits.

Mejia required 96 pitches to complete five innings, but did not allow a run. He improved to 1-5 in his career. Mejia’s line: 5 IP, 4 H, 0 R, 2 BB, 4 K, 1 WP.

WHAT’S NEXT: Collin McHugh makes his first start since Sept. 10. McHugh (0-2, 3.86 ERA) opposes left-hander Wandy Rodriguez (11-13, 3.76) Tuesday at 7:10 p.m.