NEW YORK -- Right-hander Jordan Yamamoto made two bad pitches that proved costly as the Marlins lost to the Mets, 7-2, on Wednesday afternoon at Citi Field. The Mets swept the four-game series, while Miami extended its losing streak to six games.

The Marlins finished the road trip 0-6 and now return home to face two first-place teams, four games starting Thursday against Atlanta followed by three games next week against the Dodgers.

• Box score

“We kind of got manhandled during the whole trip,” Marlins manager Don Mattingly said. “We have to get back on track. The [Trade Deadline] punched us in the gut -- reorganizing your 'pen, changing your lineup. I think it will normalize. It would be nice to be sooner [rather] than later.

“It doesn’t get any easier. It’s the big leagues. You have to be ready to play every night. We’ll get back home and see if we can make that adjustment.”

To Yamamoto’s credit, he kept Miami in the game, pitching six innings and allowing just five hits -- but he was hurt by the long ball, as two of those hits turned into four earned runs. In the first, after Yamamoto walked the Mets’ Michael Conforto with two outs, Pete Alonso came to the plate, swung at a 2-0 pitch and hit it over the wall in left-center to give New York a 2-0 lead.

Though Yamamoto settled down, retiring six of the next seven hitters he faced, he was hurt once again when Conforto swung at a first-pitch curveball and hit a two-run homer of his own in the third.

“The pitch to Conforto, I left [it] up in the zone,” Yamamoto said. “Falling behind to Pete Alonso, he saw what was coming and he hit it. That’s the difference between the Minors and the big leagues. When they get their pitch, they are not going to miss it.”

The 23-year-old -- who was called up from Double-A Jacksonville on June 12 -- made an instant impression in Miami, going 4-0 with a 1.59 ERA, including a trio of shutouts, in his first six games as a Marlin. But since July 16, Yamamoto has given up four or more runs in each of his four outings, as his ERA has ballooned to 4.17.

“I thought Jordan was OK,” Mattingly said. “The walk early and then with Alonso, he makes a mistake, leaving the ball out and over the plate. The Conforto home run, it looked like a nothing breaking ball to be honest. He hit it in the right spot.”

Mattingly pulled his serviceable starter after the sixth inning, with the Marlins down just 4-2 thanks to Lewis Brinson's second-inning RBI single and Brian Anderson's solo shot in the top of the frame. But even after Yamamoto left the game, the Mets’ home-run parade continued. In the seventh, Jeff McNeil joined in and hit New York’s third two-run homer before Conforto hit his second long ball of the day off left-hander José Quijada. In the four-game series, the Mets ended up hitting 11 balls out of the park at Citi Field.

 For Yamamoto, Wednesday’s performance may not have been the return to form he was hoping for, but it was certainly a step in the right direction -- though he wished he could take a couple of pitches back.

“I wish I came out on top and gave our team a better chance to win,” Yamamoto said.