Flower told British media that the right balance needed to be found with on-field banter after frustrations boiled over on the final day of the first Test in Brisbane, with Australian skipper Michael Clarke fined 20 percent of his match fee.
Clarke was caught by a stump microphone telling pace spearhead Jimmy Anderson to expect a broken arm, with leg spin great Shane Warne claiming it was sparked by the fast bowler threatening to punch George Bailey.
But Lehmann said talks on the issue were not necessary as he looks to build on Australia's huge 381-run victory in Brisbane that left England stunned.
"From my point of view, Andy looks after his side and I look after my side, that's what you do in the game of cricket," he told commercial radio in Adelaide late Tuesday.
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"I played cricket with Andy (at South Australia), I talk to him all the time, but at the end of the day, he's in control of the England cricket team and we've got to try and get the Ashes back."
"They're all grown men out there, they will work it out," he said. "I just know we copped a lot in England and we didn't shy away from that. That's what happens when you go away, so I don't see what the difference is from England to here.
"We're on the other end of it, that's just the way it goes. Both teams play hard and as long as it stays on the field I'm happy with that.