Trevor Bayliss says England's batting must improve for Ashes

Trevor Bayliss admits England's habit of batting collapses remains a "concern" as the Ashes loom ever nearer.

Speaking after England's 192-run victory in their warm-up match against Cricket Australia in Adelaide, Bayliss did not shy away from criticising his players.

England lost their last five first-innings wickets for 22 runs and then buckled from 93-2 to 124-7 in their second.

They still had too much ammunition with the ball against callow opponents, and had opener Mark Stoneman to thank for back-to-back half-centuries, which were supported by fifties from Dawid Malan, Joe Root and Jonny Bairstow.

Even so, with the first Test against Australia fast approaching, Bayliss acknowledges there is an ongoing issue.

"It's been a concern for us for a little while," said the Australian. "We have games like that, where we lose wickets like that. It's not for want of trying. They realise they have got to do better, and they are working hard."

England's preparation for the Ashes series has been hit by a number of injuries and Bayliss has called on the experienced members of his squad to step up and score centuries.

"It would be great if we could have some hundreds, that's for sure," Bayliss said. "The number one thing for us is that 60s are not enough - we need 160s. That's definitely what we will need throughout this Test series.

"Our more inexperienced batters have actually spent some time in the middle. Before the series, they were the ones under pressure the most, because they don't have a great deal of experience in Australian conditions."

There has been particular criticism of Alastair Cook - the opener made just 15 and 32 in Adelaide - with former Australia bowler Ryan Harris saying he looked "rusty", a description that Bayliss didn't dismiss.

"I think it would be fair to say Cooky always looks a bit rusty ... he'd probably be first to admit that," Bayliss said.

"It's a concern for any individual batter, I suppose, at different times through their career, but with Cook having played almost 150 Tests, I'm sure he's been through this before."

England play one further four-day warm-up match - against the same opposition in Townsville from Wednesday - before the first Ashes Test against Australia at The Gabba in Brisbane from November 23.